@article{700761,
title = {A general approach to the theory of set-valued mappings},
booktitle = {General Topology and its Relations to Modern Analysis and Algebra},
series = {GDML\_Books},
publisher = {Academia Publishing House of the Czechoslovak Academy of Sciences},
address = {Praha},
year = {1972},
pages = {271-280},
mrnumber = {MR0413040},
zbl = {0305.04004},
url = {http://dml.mathdoc.fr/item/700761}
}
Kuratowski, K. A general approach to the theory of set-valued mappings, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books, (1972), pp. 271-280. http://gdmltest.u-ga.fr/item/700761/