@article{700818,
title = {Two theorems of the descriptive theory of point sets},
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 = {1967},
pages = {283-283},
zbl = {0161.42403},
url = {http://dml.mathdoc.fr/item/700818}
}
Ponomarev, V. Two theorems of the descriptive theory of point sets, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books, (1967), p. 283. http://gdmltest.u-ga.fr/item/700818/