@article{DAN_1961_141_5_a12,
     author = {A. L. Fuksman},
     title = {Approximation of functions of several variables with preservation of boundary conditions},
     journal = {Doklady Akademii Nauk},
     pages = {1050--1053},
     publisher = {mathdoc},
     volume = {141},
     number = {5},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_141_5_a12/}
}