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@article{FAA_1984_18_2_a19, author = {P. A. Frolov}, title = {Topological structure of elliptic boundary problems in space}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {81--82}, publisher = {mathdoc}, volume = {18}, number = {2}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1984_18_2_a19/} }
P. A. Frolov. Topological structure of elliptic boundary problems in space. Funkcionalʹnyj analiz i ego priloženiâ, Tome 18 (1984) no. 2, pp. 81-82. http://geodesic.mathdoc.fr/item/FAA_1984_18_2_a19/