@article{DAN_1988_302_5_a6,
     author = {I. Z. Pesenson},
     title = {Best approximations in a space of the representation of a {Lie}},
     journal = {Doklady Akademii Nauk},
     pages = {1055--1058},
     publisher = {mathdoc},
     volume = {302},
     number = {5},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_302_5_a6/}
}