Ronald F. Wotzlaw, Günter M. Ziegler. A Lost Counterexample and a Problem on Illuminated Polytopes. The American Mathematical Monthly, 118(6):534-543, 2011. [doi]
@article{WotzlawZ11,
title = {A Lost Counterexample and a Problem on Illuminated Polytopes},
author = {Ronald F. Wotzlaw and Günter M. Ziegler},
year = {2011},
doi = {10.4169/amer.math.monthly.118.06.534},
url = {http://dx.doi.org/10.4169/amer.math.monthly.118.06.534},
researchr = {https://researchr.org/publication/WotzlawZ11},
cites = {0},
citedby = {0},
journal = {The American Mathematical Monthly},
volume = {118},
number = {6},
pages = {534-543},
}