Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_2012_91_3_a13, author = {A. P. Kombarov}, title = {Remark on $\Sigma${-Products}}, journal = {Matemati\v{c}eskie zametki}, pages = {467--469}, publisher = {mathdoc}, volume = {91}, number = {3}, year = {2012}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_2012_91_3_a13/} }
A. P. Kombarov. Remark on $\Sigma$-Products. Matematičeskie zametki, Tome 91 (2012) no. 3, pp. 467-469. http://geodesic.mathdoc.fr/item/MZM_2012_91_3_a13/