@article{ZNSL_1976_58_a4,
     author = {Z. A. Vlasova and O. I. Nikolaev},
     title = {Existence of a solution of a difference scheme for one variational problem},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {40--47},
     publisher = {mathdoc},
     volume = {58},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1976_58_a4/}
}