@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/}
}