Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1995_8_a7, author = {S. Ya. Khavinson}, title = {Some approximation properties of linear superpositions}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {63--73}, publisher = {mathdoc}, number = {8}, year = {1995}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1995_8_a7/} }
S. Ya. Khavinson. Some approximation properties of linear superpositions. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1995), pp. 63-73. http://geodesic.mathdoc.fr/item/IVM_1995_8_a7/