@article{1183532403,
author = {Haver, William},
title = {A characterization theorem for cellular maps},
journal = {Bull. Amer. Math. Soc.},
volume = {76},
number = {4},
year = {1970},
pages = { 1277-1280},
language = {en},
url = {http://dml.mathdoc.fr/item/1183532403}
}
Haver, William. A characterization theorem for cellular maps. Bull. Amer. Math. Soc., Tome 76 (1970) no. 4, pp. 1277-1280. http://gdmltest.u-ga.fr/item/1183532403/