@article{GDZPPN002058391,
title = {Some Semicontinuity Theorems for Convex Polytopes and Cell-complexes.},
journal = {Commentarii mathematici Helvetici},
volume = {39},
year = {1964},
pages = {165-188},
zbl = {0137.41802},
url = {http://dml.mathdoc.fr/item/GDZPPN002058391}
}
Klee, V.; Eggleston, H.G., Grünbaum, B. Some Semicontinuity Theorems for Convex Polytopes and Cell-complexes.. Commentarii mathematici Helvetici, Tome 39 (1964) pp. 165-188. http://gdmltest.u-ga.fr/item/GDZPPN002058391/