Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1967_1_4_a2, author = {A. V. Efimov}, title = {Generalization of a theorem of {Kaczmarz}}, journal = {Matemati\v{c}eskie zametki}, pages = {399--404}, publisher = {mathdoc}, volume = {1}, number = {4}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1967_1_4_a2/} }
A. V. Efimov. Generalization of a theorem of Kaczmarz. Matematičeskie zametki, Tome 1 (1967) no. 4, pp. 399-404. http://geodesic.mathdoc.fr/item/MZM_1967_1_4_a2/