@article{DAN_1974_215_1_a0,
     author = {I. V. Boykov},
     title = {The principle of compact approximation in the perturbed {Galerkin} method},
     journal = {Doklady Akademii Nauk},
     pages = {11--14},
     publisher = {mathdoc},
     volume = {215},
     number = {1},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_215_1_a0/}
}