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@article{DE_1980_16_4_a15, author = {N. P. Savenkova}, title = {A nonlinear eigenvalue problem}, journal = {Differencialʹnye uravneni\^a}, pages = {741--745}, publisher = {mathdoc}, volume = {16}, number = {4}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1980_16_4_a15/} }
N. P. Savenkova. A nonlinear eigenvalue problem. Differencialʹnye uravneniâ, Tome 16 (1980) no. 4, pp. 741-745. http://geodesic.mathdoc.fr/item/DE_1980_16_4_a15/