@article{GDZPPN00036701X,
title = {An Efficient Algorithm for Guard Placement in Polygons with Holes.},
journal = {Discrete \& computational geometry},
volume = {13},
year = {1995},
pages = {77-110},
zbl = {0815.68056},
url = {http://dml.mathdoc.fr/item/GDZPPN00036701X}
}
Bjorling-Sachs, I.; Souvaine, D.L. An Efficient Algorithm for Guard Placement in Polygons with Holes.. Discrete & computational geometry, Tome 13 (1995) pp. 77-110. http://gdmltest.u-ga.fr/item/GDZPPN00036701X/