@article{IVM_1974_8_a4,
     author = {T. P. Ivanova},
     title = {Difference approximations of multidimensional variational problems with constraints on the derivatives},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {26--37},
     publisher = {mathdoc},
     number = {8},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1974_8_a4/}
}