@inproceedings{ks-eaagi-12,
author =         "S\'{a}ndor P. Fekete and Stephan Friedrichs and Alexander Kr{\"o}ller and Christiane~Schmidt",
title =          "Facets for Art Gallery Problems",
booktitle =      "Proceedings of the 29th European Workshop on Computational Geometry",
year =           "2013",
pages =          "1--5"
}