Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1985_38_5_a7, author = {P. A. Biryukov}, title = {Spaces with bases and \ensuremath{\pi}-basis of finite rank}, journal = {Matemati\v{c}eskie zametki}, pages = {709--712}, publisher = {mathdoc}, volume = {38}, number = {5}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1985_38_5_a7/} }
P. A. Biryukov. Spaces with bases and π-basis of finite rank. Matematičeskie zametki, Tome 38 (1985) no. 5, pp. 709-712. http://geodesic.mathdoc.fr/item/MZM_1985_38_5_a7/