Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1970_195_1_a0, author = {V. V. Barkovskii}, title = {Mixed boundary value problems of general form, non-stationary on part of the boundary}, journal = {Doklady Akademii Nauk}, pages = {9--12}, publisher = {mathdoc}, volume = {195}, number = {1}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1970_195_1_a0/} }
V. V. Barkovskii. Mixed boundary value problems of general form, non-stationary on part of the boundary. Doklady Akademii Nauk, Tome 195 (1970) no. 1, pp. 9-12. http://geodesic.mathdoc.fr/item/DAN_1970_195_1_a0/