@article{IVM_2024_7_a6,
     author = {P. S. Solov'ev},
     title = {Existence of positive solutions of symmetric variational eigenvalue problems},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {77--84},
     year = {2024},
     number = {7},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2024_7_a6/}
}