@article{ELMA_1975__30_141153,
     author = {Moshe Rosenfeld},
     title = {Inner {Illumination} of {Convex} {Polytopes.}},
     journal = {Elemente der Mathematik},
     pages = {27--28},
     publisher = {mathdoc},
     volume = {30},
     year = {1975},
     zbl = {0297.52004},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1975__30_141153/}
}