@article{MZM_2018_103_6_a12,
     author = {A. V. Arutyunov and S. E. Zhukovskii},
     title = {Variational {Principles} in {Nonlinear} {Analysis} and {Their} {Generalization}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {948--954},
     publisher = {mathdoc},
     volume = {103},
     number = {6},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2018_103_6_a12/}
}