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@article{MAT_1960_4_5_a7, author = {M. Schechter}, title = {General boundary value problems for elliptic partial differential equations}, journal = {Matematika}, pages = {93--122}, publisher = {mathdoc}, volume = {4}, number = {5}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MAT_1960_4_5_a7/} }
M. Schechter. General boundary value problems for elliptic partial differential equations. Matematika, Tome 4 (1960) no. 5, pp. 93-122. http://geodesic.mathdoc.fr/item/MAT_1960_4_5_a7/