https://deepai.org/publication/optimally-guarding-2-reflex-orthogonal-polyhedra-by-reflex-edge-guards
Optimally Guarding 2-Reflex Orthogonal Polyhedra by Reflex Edge Guards | DeepAI
Aug 18, 2017 - 08/18/17 - We study the problem of guarding an orthogonal polyhedron having reflex edges in just two directions (as opposed to three) by plac...
orthogonal polyhedraedge guardsoptimallyguarding2