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@article{DAN_1987_294_2_a16, author = {I. Yu. Popov}, title = {A slit of zero width and the {Dirichlet} condition}, journal = {Doklady Akademii Nauk}, pages = {330--334}, publisher = {mathdoc}, volume = {294}, number = {2}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1987_294_2_a16/} }
I. Yu. Popov. A slit of zero width and the Dirichlet condition. Doklady Akademii Nauk, Tome 294 (1987) no. 2, pp. 330-334. http://geodesic.mathdoc.fr/item/DAN_1987_294_2_a16/