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@article{DAN_1969_189_4_a13, author = {A. F. Shapkin}, title = {On nondetermined methods of solving {Poisson{\textquoteright}s} equation optimal on function classes}, journal = {Doklady Akademii Nauk}, pages = {744--747}, publisher = {mathdoc}, volume = {189}, number = {4}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1969_189_4_a13/} }
A. F. Shapkin. On nondetermined methods of solving Poisson’s equation optimal on function classes. Doklady Akademii Nauk, Tome 189 (1969) no. 4, pp. 744-747. http://geodesic.mathdoc.fr/item/DAN_1969_189_4_a13/