@article{104915,
author = {Ale\v s Pultr},
title = {On the homology theory of discrete spaces},
journal = {Commentationes Mathematicae Universitatis Carolinae},
volume = {003},
year = {1962},
pages = {23-43},
zbl = {0105.16902},
mrnumber = {0159326},
language = {en},
url = {http://dml.mathdoc.fr/item/104915}
}
Pultr, Aleš. On the homology theory of discrete spaces. Commentationes Mathematicae Universitatis Carolinae, Tome 003 (1962) pp. 23-43. http://gdmltest.u-ga.fr/item/104915/
Foundations of Algebraic Topology, Princeton Univ. Press, 1962. (1962)