International Conferences 

  1. Kangmin Bae, Minuk Ma, Hyunjun Jang, Minjeong Ju, Hyoungwoo Park, and Chang D. Yoo, "ImaGAN: Unsupervised Training of Conditional Joint CycleGAN for Transferring Style with Core Structures in Content Preserved", Asian Conference on Computer Vision, 2018

  2. Sunghun Kang, Junyeong Kim, Hyunsoo Choi, Sungjin Kim and Chang D. Yoo, "Pivot Correlational Neural Network for Multimodal Video Categorization", European Conference on Computer Vision, 2018

  3. OH CHULKWON, Junyeong Kim, Chang D.Yoo, "Action Recognition: First-And Second-Order 3D Feature in Bi-Directional Attention Network", International Conference on Image Processing, 2018

  4. Hyunwoo Nam, Chang D. Yoo, "Content Adaptive Video Summarization using Spatio-Temporal Feature", International Conference on Image Processing, 2017

  5. HouJeung Han, Sunghun Kang, Chang D. Yoo, "Multi-view Visual Speech Recognition Based on Multi-task Learning", International Conference on Image Processing, 2017

  6. Junyeong Kim, Chang D Yoo, "Deep Partial Person Re-identification via Attention Model", International Conference on Image Processing, 2017

  7. Hyunsin Park, Chang D. Yoo, "Melody extraction and detection through LSTM-RNN with harmonic sum loss", in Proceedings of International Conference on Acoustics, Speech and Signal Processing, New Orleans, USA, 2017

  8. Sanghyuk Park, Fei Pan, Sunghun Kang and Chang D. Yoo, "Driver drowsiness detection system based on feature representation learning using various deep networks", The ACCV Workshop on Driver Drowsiness Detection from Video 2016, Taipei, Taiwan, ROC, 2016pdf_icon.png

  9. Mingoo Song, Chang D. Yoo, "Multimodal Representation: Kneser-Ney Smoothing/Skip-gram based Neural Language Model", in Proceedings of International Conference on Image Processing, 2016.pdf_icon.png

  10. DatTien Ngo*, Sanghuyk Park*, Anne Jorstad, Alberto Crivellaro, Chang.D Yoo, Pascal Fua, "Dense image registration and deformable surface reconstruction in presence of occlusions and minimal texture", in Proceedings of International Conference on Computer Vision, Santiago, Chile, 2015.pdf_icon.png

  11. Changhoon Lee and Chang D. Yoo, "Segment-wise Online Learning based on Greedy Algorithm For Real-time Multi-target Tracking", in Proceedings of International Conference on Image Processing, Quebec, Canada, 2015.pdf_icon.png

  12. Sunghun Kang, Donghoon Lee, and Chang D. Yoo, "Face attribute classification using attribute-aware correlation map and gated convolutional neural networks", in Proceedings of International Conference on Image Processing, Quebec, Canada, 2015.pdf_icon.png

  13. Donghoon Lee, Hyunsin Park, and Chang D. Yoo, "Face Alignment Using Cascade Gaussian Process Regression Trees", in Proceedings of International Conference on Computer Vision and Pattern Recognition, Boston, USA, 2015.pdf_icon.png

  14. Chulhee Yun, Donghoon Lee, and Chang D. Yoo, "Face Detection using Local Hybrid Patterns," in Proceedings of International Conference on Acoustics, Speech and Signal Processing, Brisbane, Australia, 2015.pdf_icon.png

  15. Donghoon Lee, Junyoung Chung, Chang D. Yoo, "Joint Estimation of Pose and Face Landmark", in Proceedings of Asian Conference on Computer Vision, Singapore, 2014.pdf_icon.png

  16. Tae-Ho Kim, Changhoon Lee, Chang D. Yoo, "Greedy algorithm for Real-time Multi-object Tracking", International Conference on Image Processing, Paris, France, 2014.pdf_icon.png

  17. Jaesik Yoon, Jin Ho Choi and Chang D. Yoo, "A hierarchical structured dictionary algorithm for classification", International Conference on Image Processing, Paris, France, 2014.pdf_icon.png

  18. Yuna Seo, Donghoon Lee, and Chang D. Yoo, "Salient object detection using bipartite dictionary", International Conference on Image Processing, Paris, France, 2014.pdf_icon.png

  19. Young-Joo Seo, Jongmin Kim, Hoyong Jang, Tae-Ho Kim and Chang D. Yoo, "Joint Learning of Foreground Region Labeling and Depth Ordering", International Conference on Acoustics, Speech, and Signal Processing, Florence, Italy, 2014.pdf_icon.png

  20. Kang J., Jang H., Yoo Ch.D. "Image denoising via energy oriented sparse representation", 11th International Conference on Pattern Recognition and Image Analysis, Russia, 2013.pdf_icon.png

  21. Park S., Yoon J., Yoo Ch. D., Kwon J. "Complex scene analysis using hierarchical sparse concept representation", 11th International Conference on Pattern Recognition and Image Analysis, Russia, 2013.pdf_icon.png

  22. Jongmin Kim, Sanghyuk Park, Youngju Seo, Sungrack Yun, and Chang D. Yoo, "Joint Kernel Learning for Supervised Image Segmentation" in Proceedings of Asian Conference on Computer Vision, Daejeon, Korea, November 2012. (Orals, 3.6% acceptance rate)pdf_icon.png

  23. Donghoon Lee, Hyunsin Park, Junyoung Chung, Youngook Song, and Chang D. Yoo, "Sparsity sharing embedding for face verification" in Proceedings of Asian Conference on Computer Vision, Daejeon, Korea, November 2012. (Posters, 23.2% acceptance rate)pdf_icon.png

  24. Hyunsin Park, Sungrack Yun, Jongmin Kim, Sanghyuk Park, and Chang D. Yoo, "Phoneme Classification using Constrained Variational Gaussian Process Dynamical System" in Proceedings of Neural Information Processing Systems, Lake Tahoe, Nevada, United States, December 2012. (25% acceptance rate)pdf_icon.png

  25. Sungwoong Kim, Sebastian Nowozin, Pushmeet Kohli and Chang D. Yoo, "Higher-Order Correlation Clustering for Image Segmentation," in Proceedings of Neural Information Processing Systems, Granada, Spain, December 2011. (22% acceptance rate)pdf_icon.png

  26. Sihyun Joo, Sanghun Park, Seokhwan Jo and Chang D. Yoo, "Melody Extraction based on Harmonic Coded Structure," in Proceedings of ISMIR 2011, Miami, USA, October 2011.pdf_icon.png

  27. Janghoon Cho, Jinho Choi and Chang D. Yoo, "Underdetermined Convolutive BSS based on a Novel Mixing Matrix Estimation and MMSE based Source Estimation," in Proceedings of IEEE International Workshop on Machine Learning for Signal Processing, Beijing, China, September 2011.pdf_icon.png

  28. Jinho Choi and Chang D. Yoo, "A High Resolution Multiple Source Localization based on Generalized Cumulant Structure (GCS) Matrix," in Proceedings of Interspeech, Florence, Italy, August 2011.pdf_icon.png

  29. Juwan Lee, Sanghun Park, Seokhwan Jo and Chang D. Yoo, "Music Plagiarism Detection System," in Proceedings of The 26th International Technical Conference on Circuits/Systems, Computers and Communications, Gyeongju, Korea, June 2011.

  30. Sanghyuk Park, Sungrack Yun, Donghoon Lee and Chang D. Yoo, "Efficient Drowsiness Detection Algorithm for Active Safety Driving System," in Proceedings of The 26th International Technical Conference on Circuits/Systems, Computers and Communications, Gyeongju, Korea, June 2011.

  31. Taesup Kim, Pushmeet Kohli, Sebastian Nowozin and Chang D. Yoo, "Variable Grouping for Energy Minimization," in Proceedings of IEEE Conference on Computer Vision and Pattern Recognition, Colorado, USA, June 2011. (Posters, 22.5% acceptance rate)pdf_icon.png

  32. SeungRyul Baek, Chang D. Yoo and Sungrack Yun, "Learning a Discriminative Visual Codebook using Homonym Scheme," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Prague, Czech Republic, May 2011.pdf_icon.png

  33. Sungwoong Kim, Jongmin Kim, Sungrack Yun and Chang D. Yoo, "ν-Structured Support Vector Machines," in Proceedings of IEEE International Workshop on Machine Learning for Signal Processing, Kittila, Finland, August-September 2010.pdf_icon.png

  34. Seokhwan Jo, Sihyun Joo and Chang D. Yoo, "Melody pitch estimation based on range estimation and candidate extraction using harmonic structure model," in Proceedings of Interspeech, Makuhari, Japan, September 2010.pdf_icon.png

  35. Jinho Choi and Chang D. Yoo, "A Maximum a Posteriori Sound Source Localization in Reverberant and Noisy Conditions," in Proceedings of Interspeech, Makuhari, Japan, September 2010.pdf_icon.png

  36. Jinho Choi, Dalwon Jang and Chang D. Yoo, "An Image Fingerprinting System Based on Color Histogram of Affine Covariant Region," in Proceedings of ICEIC, Cebu, Philippines, June-July 2010.pdf_icon.png

  37. Seokhwan Jo and Chang D. Yoo, "Melody extraction from polyphonic audio based on particle filter", in Proceedings of ISMIR 2010, Utrecht, Netherlands, August 2010.pdf_icon.png

  38. Sungwoong Kim, Sungrack Yun and Chang D. Yoo, "Large margin training of semi-Markov model for phonetic recognition," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Dallas, USA, March 2010.pdf_icon.png

  39. Younsung Park, Sungrack Yun and Chang D. Yoo, "Parametric emotional singing voice synthesis," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Dallas, USA, March 2010.pdf_icon.png

  40. Dalwon Jang and Chang D. Yoo, "Music information retrieval using novel features and a weighted voting method," in Proceedings of IEEE International Symposium on Industrial Electronics(ISIE 2009), Seoul, Korea, July 2009.

  41. Sungwoong Kim,Sungrack Yun, and Chang D. Yoo, "Margin-Enhanced Maximum Mutual Information Estimation for Hidden Markov Models," in Proceedings of IEEE Internal Symposium on Industrial Electronics(ISIE 2009), Seoul, Korea, July 2009.

  42. Minho Jin, Jaewook Kim, and Chang D. Yoo, "Humming-Based Human Verification and Identification",in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Taipei, Taiwan, April 2009.pdf_icon.png

  43. Seokhwan Jo, Chang D. Yoo, "Psychoacoustically Constrained and Distortion Minimized Speech Enhancement Algorithm," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Taipei, Taiwan, April 2009.pdf_icon.png

  44. Sungrack Yun and Chang D. Yoo, "Speech Emotion Recognition Via A Max-margin Framework Incorporating A Loss Function Based on The Watson and Tellegen's Emotion Model," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Taipei, Taiwan, April 2009.pdf_icon.png

  45. Dalwon Jang and Chang D. Yoo, "Fingerprint Matching Based on Distance Metric Learning," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Taipei, Taiwan, April 2009.pdf_icon.png

  46. Sunil Lee and Chang D. Yoo, "Robust Video Fingerprinting Based on 2D-OPCA of Affine Covariant Regions," Proceedings of IEEE International Conference on Image Processing, San Diego, USA, October 2008.pdf_icon.png

  47. Dalwon Jang, Minho Jin, and Chang D. Yoo, "MUSIC GENRE CLASSIFICATION USING NOVEL FEATURES AND A WEIGHTED VOTING METHOD," in Proceedings of IEEE International Conference on Multimedia and Expo, Hannover, Germany, June 2008.pdf_icon.png

  48. Seokhwan Jo, Dohyun Lee, Yoonseob Kim, and Chang D. Yoo, "DEVELOPMENT OF A SIMPLE FREE VIEWPOINT VIDEO SYSTEM," in Proceedings of IEEE International Conference on Multimedia and Expo, Hannover, Germany, June 2008.pdf_icon.png

  49. Sunil Lee and Chang D. Yoo, "Robust Video Fingerprinting based on Affine Covariant Regions," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Las Vegas, Nevada, USA, March-April 2008.pdf_icon.png

  50. Sungrack Yun and Chang D. Yoo, "Automatic Floating-point to Fixed-point Conversion for Speech Recognition in Fixed-point DSP," in Proceedings of The 22nd International Technical Conference on Circuits/Systems, Computers and Communications, Busan, Korea, vol. 2, pp. 837-838, July 2007.

  51. Sungrack Yun and Chang D. Yoo, "The p-Norm of Likelihood Difference Estimation Algorithm for Hidden Markov Models," in Proceedings of The 22nd International Technical Conference on Circuits/Systems, Computers and Communications, Busan, Korea, vol. 3, pp. 1215-1216, July 2007.

  52. Minho Jin and Chang D. Yoo, "Temporal Dynamics for Spectral Sub-band Centroid Audio Fingerprints," in Proceedings of IEEE International Conference on Multimedia/Expo, Beijing, China, pp. 180-183, July 2007.pdf_icon.png

  53. Sungwoong Kim and Chang D. Yoo, "Boosted Binary Audio Fingerprint Based on Spectral Subband Moments," In Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Honolulu, Hawaii, USA, vol. 1, pp. 241-244, April 2007.pdf_icon.png

  54. JunSeong Kim, SangGyun Kim and Chang D. Yoo, "A Novel Adaptive Crosstalk Cancellation Using Psychoacoustic Model for 3D Audio," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Honolulu, Hawaii, USA, vol. 1, pp. 185-188, April 2007.pdf_icon.png

  55. Seokhwan Jo and Chang D. Yoo, "Speech Enhancement Based on the Decomposition of Speech into Deterministic and Stochastic Components and Psychoacoustic Model," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Honolulu, Hawaii, USA, vol. 4, pp. 897-900, April 2007.pdf_icon.png

  56. SangGyun Kim and Chand D. Yoo, "Underdetermined Blind Source Separation Based on Generalized Gaussian Distribution," in Proceedings of IEEE International Workshop on Machine Learning for Signal Processing, Maynooth, Ireland, pp. 103-108, September 2006.pdf_icon.png

  57. Dalwon Jang, Seungjae Lee, Jun Seok Lee, Minho Jin, Jin S. Seo, Sunil Lee and Chang D. Yoo, "Automatic Commercial Monitoring for TV Broadcasting Using Audio Fingerprinting," in Proceedings of The 29th Audio Engineering Society Conference, Seoul, Korea, pp. 38-43, September 2006.pdf_icon.png

  58. Sunil Lee and Chang D. Yoo, "Video Fingerprinting Based on Centroids of Gradient Orientations," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Toulouse, France, vol. 2, pp. 401-404, May 2006.pdf_icon.png

  59. Dalwon Jang, Chang D. Yoo, "A Novel Embedding Method For an Anti-Collusion Fingerprinting by Embedding Both a Code and an Orthogonal Fingerprint," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Toulouse, France, vol. 5, pp. 485-488, May 2006.pdf_icon.png

  60. Minho Jin, Frank K. Soong and Chang D. Yoo, "Syllable Lattice Based Re-Scoring For Speaker Verification," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Toulouse, France, vol. 1, pp. 921-924, May 2006.pdf_icon.png

  61. Jin S. Seo, Minho Jin, Sunil Lee, Dalwon Jang, Seungjae Lee and Chang D. Yoo, "Audio Fingerprinting Based on Normalized Spectral Subband Centroids," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Philadelphia, Pennsylvania, USA, vol. 3, pp. 213-216, March 2005.pdf_icon.png

  62. Seungjae Lee, Dalwon Jang and Chang D. Yoo, "An SVD-Based Watermarking Method for Image Content Authentication with Improved Security," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Philadelphia, Pennsylvania, USA, vol. 2, pp. 525-528, March 2005.pdf_icon.png

  63. SangGyun Kim and Chang D. Yoo, "Blind Separation of Speech and Sub-Gaussian Signals in Underdetermined Case," in Proceedings of International Conference on Spoken Language Processing, Jeju, Korea, pp. 2861-2864, October 2004.

  64. Minho Jin, Gyucheol Jang, Sungrack Yun, Chang D. Yoo, "Hybrid Utterance Verification based on N-best Models and Model derived from Kullback-Leibler Divergence," in Proceedings of International Conference on Spoken Language Processing, Jeju, Korea, pp. 1529-1532, October 2004.

  65. SangGyun Kim and Chang D. Yoo, "Underdetermined Independent Component Analysis by Data Generation," in Proceedings of Independent Component Analysis and Blind Signal Separation, Granada, Spain, pp. 445-452, September 2004.pdf_icon.png

  66. Jin S. Seo and Chang D. Yoo, "Image watermarking based on scale-space representation," in Proceedings of IS&T/SPIE Electronic Imaging, San Jose, California, USA, vol. 5306, pp. 560-570, January 2004.pdf_icon.png

  67. Gyucheol Jang, Minho Jin, and Chang D. Yoo, "Speaker Adaptation Based on Confidence-Weighted Training," in Proceedings of Eurospeech, Geneva, Switzerland, pp. 1617-1620, September 2003.pdf_icon.png

  68. Seongho Seo, Dalwon Jang, Sunil Lee, and Chang D. Yoo, "A Novel Transcoding Algorithm for SMV and G.723.1 Speech Coders via Direct Parameter Transformation," in Proceedings of Eurospeech, Geneva, Switzerland, pp. 2861-2864, September 2003.pdf_icon.png

  69. Dalwon Jang, Seongho Seo, Sunil Lee, and Chang D. Yoo, "A Novel Rate Selection Algorithm for Transcoding CELP-type Codec and SMV," in Proceedings of Eurospeech, Geneva, Switzerland, pp. 2865-2868, September 2003.pdf_icon.png

  70. SangGyun Kim, Jong Uk Kim, and Chang D. Yoo, "Accuracy Improved Double-Talk Detector Based on State-Transition Diagram," in Proceedings of Eurospeech, Geneva, Switzerland, pp. 1421-1424, September 2003.pdf_icon.png

  71. Jong Uk Kim, SangGyun Kim, and Chang D. Yoo, "A Robust and Sensitive Word Boundary Decision Algorithm," in Proceedings of Eurospeech, Geneva, Switzerland, pp. 2857-2860, September 2003.pdf_icon.png

  72. SangGyun Kim and Chang D. Yoo, "Acoustic Echo Cancellation with Double-talk Detector in Subbands," in Proceedings of Internoise, Jeju, Korea, pp. 2631-2638, August 2003.

  73. Jong Kwan Lee and Chang D. Yoo, "Wavelet Speech Enhancement Based on Voiced/Unvoiced Decision," In Proceedings of Internoise, Jeju, Korea, pp. 4149-4156, August 2003.

  74. Jong Uk Kim and Chang D. Yoo, "Psychoacoustically Motivated Subspace Speech Enhancement," in Proceedings of Internoise, Jeju, Korea, pp. 4157-4164, August 2003.

  75. Sunil Lee, Seongho Seo, Dalwon Jang and Chang D. Yoo, "A Novel Transcoding Algorithm for AMR and EVRC Speech Codecs via Direct Parameter Transformation," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Hong Kong, China, vol. 2, pp. 177-180, April 2003.pdf_icon.png

  76. Jong Uk Kim, Sang G. Kim and Chang D. Yoo, "The Incorporation of Masking Threshold to Subspace Speech Enhancement," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Hong Kong, China, vol. 1, pp. 76-79, April 2003.pdf_icon.png

  77. Gyucheol Jang, Sooyoung Woo, Minho Jin and Chang D. Yoo, "Improvements in speaker adaptation using weighted training," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Hong Kong, China, vol. 1, pp. 548-551, April 2003.pdf_icon.png

  78. Jin S. Seo, Jaap Haitsma, Ton Kalker and Chang D. Yoo, "Affine transform resilient image fingerprinting," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Hong Kong, China, vol. 3, pp. 61-64, April 2003.pdf_icon.png

  79. Sang G. Kim and Chang D. Yoo, "Acoustic echo cancellation based on M-channel IIR cosine-modulated filter bank," in Proceedings of International Conference on Spoken Language Processing, Denver, Colorado, USA, vol. 2, pp. 789-792, September 2002.pdf_icon.png

  80. Jong Uk Kim and Chang D. Yoo, "Subspace Speech Enhancement Using Subband Whitening Filter," in Proceedings of International Conference on Spoken Language Processing, Denver, Colorado, USA, vol. 2, pp. 1085-1088, September 2002.pdf_icon.png

  81. Jin S. Seo and Chang D. Yoo, "On the design of template in the autocorrelation domain," in Proceedings of IS&T/SPIE Electronic Imaging, vol. 4675, pp. 305-312, San Jose, California, USA, January 2002.pdf_icon.png

  82. SangGyun Kim and ChangDong Yoo, "Oversampled adaptive subband structure," in Proceedings of International Conference on Speech Processing, Daejeon, Korea, vol. 2, pp. 907-910, August 2001.

  83. Gyucheol Jang, Sooyoung Woo and Chand D. Yoo, "Voice segmentation algorithm," in Proceedings of International Conference on Speech Processing, Daejeon, Korea, vol. 2, pp. 593-596, August 2001.

  84. Sukhyun Yoon and Chang D. Yoo, "Novel speech enhancement based on speech/noise-dominant decision," in Proceedings of International Conference on Speech Processing, Daejeon, Korea, vol. 2, pp. 911-914, August 2001.

  85. Wonil Lee, Sunil Lee and Changdong Yoo, "Improvement of tandemless trandcoding from AMR to EVRC," in Proceedings of International Conference on Speech Processing, Daejeon, Korea, vol. 1, pp. 334-339, August 2001.

  86. Jin S. Seo and Chang D. Yoo, "Correlation detection of asymmetric watermark," in Proceedings of IEEE Pacific-Rim Conference on Multimedia, Beijing, China, vol. 2195, pp. 638-645, October 2001.pdf_icon.png

  87. Sukhyun Yoon and Chang D. Yoo, "Speech/Noise dominant decision for speech enhancement," in Proceedings of Eurospeech, Aalborg, Denmark, vol. 3, pp. 1941-1944, September 2001.pdf_icon.png

  88. Jin S. Seo and Chang D. Yoo, "Comparison of acoustic echo cancellers based on neural network," in Proceedings of International Conference on Neural Information Processing, Daejeon, Korea, vol. 2, pp. 1363-1366, November 2000.

  89. Chang D. Yoo, "Utilizing Interband Acoustical Information for Modeling Stationary Time-Frequency Regions of Noisy Speech," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Phoenix, Arizona, USA, vol. 2, pp. 809-812, March 1999.pdf_icon.png

  90. Chang D. Yoo, "Selective All-Pole Modeling of Degraded Speech using M-Band Decomposition," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Atlanta, Georgia, USA, vol. 2, pp. 641-644, May 1996.pdf_icon.png

  91. Chang D. Yoo and Jae S. Lim, "Speech Enhancement Based on the Generalized Dual Excitation Model with Adaptive Analysis Window," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Detroit, Michigan, USA, vol. 1, pp. 832-835, May 1995.pdf_icon.png

  92. John Hardwick, Chang D. Yoo and Jae S. Lim, "Speech Enhancement using the Dual Excitation Speech Model," in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing, Minneapolis, Minnesota, USA, vol. 2, pp. 367-370, May 1993.pdf_icon.png