@article{DE_1969_5_8_a15, author = {P. E. Sobolevskii and M. N. Titenskii}, title = {An investigation of the solvability of perturbed parabolic equations in a {Banach} space, and a generalized {Bubnov--Galerkin} method for their approximate solution}, journal = {Differencialʹnye uravneni\^a}, pages = {1495--1502}, publisher = {mathdoc}, volume = {5}, number = {8}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1969_5_8_a15/} }