@article{DAN_1975_225_6_a7,
     author = {V. R. Portnov},
     title = {On the existence of bounded {Galerkin} nets for nonlinear operators},
     journal = {Doklady Akademii Nauk},
     pages = {1267--1270},
     publisher = {mathdoc},
     volume = {225},
     number = {6},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_225_6_a7/}
}