@article{MZM_1968_3_1_a9,
     author = {A. A. Zakharov},
     title = {Beste {Approximation} von {Elementen} eines nuklearen {Raumes}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {77--84},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1968_3_1_a9/}
}