Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1963_5_a2, author = {Ya. S. Bugrov}, title = {Inequalities for harmonic polynomials}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {12--23}, publisher = {mathdoc}, number = {5}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1963_5_a2/} }
Ya. S. Bugrov. Inequalities for harmonic polynomials. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 5 (1963), pp. 12-23. http://geodesic.mathdoc.fr/item/IVM_1963_5_a2/