@article{AA_1999_11_1_a5,
     author = {S. S. Platonov},
     title = {Approximation of functions in the $L_2$-metric on noncompact symmetric spaces of rank~1},
     journal = {Algebra i analiz},
     pages = {244--270},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1999_11_1_a5/}
}