@article{700684,
title = {Covering dimensions and partitions of unity},
booktitle = {General topology and its relations to modern analysis and algebra IV},
series = {GDML\_Books},
publisher = {Society of Czechoslovak Mathematicians and Physicist},
address = {Praha},
year = {1977},
pages = {159-163},
mrnumber = {MR0458387},
zbl = {0372.54034},
url = {http://dml.mathdoc.fr/item/700684}
}
Hejcman, J. Covering dimensions and partitions of unity, dans General topology and its relations to modern analysis and algebra IV, GDML_Books, (1977), pp. 159-163. http://gdmltest.u-ga.fr/item/700684/