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@article{KUKZ_1967_4_4_a0, author = {L. A. Aksent'ev}, title = {Construction of the {Schwarz} operator by the symmetry method}, journal = {Trudy seminara po kraevym zada\v{c}am}, pages = {3--10}, publisher = {mathdoc}, volume = {4}, number = {4}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KUKZ_1967_4_4_a0/} }
L. A. Aksent'ev. Construction of the Schwarz operator by the symmetry method. Trudy seminara po kraevym zadačam, Trudy Seminara po Kraevym Zadacham, Tome 4 (1967) no. 4, pp. 3-10. http://geodesic.mathdoc.fr/item/KUKZ_1967_4_4_a0/