@article{100161, author = {Ivo Vrko\v c}, title = {Ob obrashchenii teoremy Chetaeva}, journal = {Czechoslovak Mathematical Journal}, volume = {05}, year = {1955}, pages = {451-461}, mrnumber = {0079688}, language = {ru}, url = {http://dml.mathdoc.fr/item/100161} }
Vrkoč, Ivo. Об обращении теоремы Четаева. Czechoslovak Mathematical Journal, Tome 05 (1955) pp. 451-461. http://gdmltest.u-ga.fr/item/100161/