Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1973_213_4_a4, author = {A. P. Kombarov and V. I. Malykhin}, title = {On $\Sigma$-products}, journal = {Doklady Akademii Nauk}, pages = {774--776}, publisher = {mathdoc}, volume = {213}, number = {4}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1973_213_4_a4/} }
A. P. Kombarov; V. I. Malykhin. On $\Sigma$-products. Doklady Akademii Nauk, Tome 213 (1973) no. 4, pp. 774-776. http://geodesic.mathdoc.fr/item/DAN_1973_213_4_a4/