@article{IVM_1970_5_a6,
     author = {V. N. Koshelev and S. F. Morozov},
     title = {Theorems on the existence of discontinuous solutions in spatial variational problems},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {47--52},
     publisher = {mathdoc},
     number = {5},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1970_5_a6/}
}