Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1968_4_2_a7, author = {V. V. Ostroumov}, title = {The unique solvability of de la {Vall\'ee} {Poussin's} problem}, journal = {Differencialʹnye uravneni\^a}, pages = {261--268}, publisher = {mathdoc}, volume = {4}, number = {2}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1968_4_2_a7/} }
V. V. Ostroumov. The unique solvability of de la Vall\'ee Poussin's problem. Differencialʹnye uravneniâ, Tome 4 (1968) no. 2, pp. 261-268. http://geodesic.mathdoc.fr/item/DE_1968_4_2_a7/