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@article{FAA_1973_7_4_a7, author = {Yu. Sh. Abramov}, title = {Variational principles for nonlinear eigenvalue problems}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {76--77}, publisher = {mathdoc}, volume = {7}, number = {4}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1973_7_4_a7/} }
Yu. Sh. Abramov. Variational principles for nonlinear eigenvalue problems. Funkcionalʹnyj analiz i ego priloženiâ, Tome 7 (1973) no. 4, pp. 76-77. http://geodesic.mathdoc.fr/item/FAA_1973_7_4_a7/