@InProceedings{cjkmos-gaggw-04,
author = { Kyung-Yong Chwa and Byung-Cheol Jo and Christian Knauer and Esther Moet and René van Oostrum and Chan-Su Shin },
title = { Guarding Art Galleries by Guarding Witnesses },
booktitle = { Proceedings of the 20th European Workshop on Computational Geometry (EWCG), Seville, Spain },
year = { 2004 },
pages = { 352 -363 },
}
