Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1966_169_6_a4, author = {L. Keldysh}, title = {Topological imbeddings and pseudo-isotropy}, journal = {Doklady Akademii Nauk}, pages = {1262--1265}, publisher = {mathdoc}, volume = {169}, number = {6}, year = {1966}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1966_169_6_a4/} }
L. Keldysh. Topological imbeddings and pseudo-isotropy. Doklady Akademii Nauk, Tome 169 (1966) no. 6, pp. 1262-1265. http://geodesic.mathdoc.fr/item/DAN_1966_169_6_a4/