@article{DBLP:journals/gis/KaucicZ04,
author = {Branko Kaucic and
Borut Zalik},
title = {K-guarding of polyhedral terrain},
journal = {International Journal of Geographical Information Science},
volume = {18},
number = {7},
year = {2004},
pages = {709-718},
ee = {http://dx.doi.org/10.1080/13658810410001705299},
bibsource = {DBLP, http://dblp.uni-trier.de}
}