Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{PMFA_1959__4_3_a0, author = {Boltjanskij, V. G. and Jefremovi\v{c}, V. A.}, title = {O topologii. {I}}, journal = {Pokroky matematiky, fyziky a astronomie}, pages = {265--288}, publisher = {mathdoc}, volume = {04}, number = {3}, year = {1959}, zbl = {0229.54002}, language = {cz}, url = {http://geodesic.mathdoc.fr/item/PMFA_1959__4_3_a0/} }
Boltjanskij, V. G.; Jefremovič, V. A. O topologii. I. Pokroky matematiky, fyziky a astronomie, Tome 04 (1959) no. 3, pp. 265-288. http://geodesic.mathdoc.fr/item/PMFA_1959__4_3_a0/