@article{DE_1998_34_10_a9, author = {E. G. D'yakonov}, title = {A new approach to the {Dirichlet} boundary conditions that is based on the use of strengthened {Sobolev} spaces}, journal = {Differencialʹnye uravneni\^a}, pages = {1359--1368}, publisher = {mathdoc}, volume = {34}, number = {10}, year = {1998}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1998_34_10_a9/} }