@article{DAN_1997_353_4_a2, author = {S. S. Platonov}, title = {On {Jackson-type} theorems on a compact symmetric space of rank $1$}, journal = {Doklady Akademii Nauk}, pages = {445--448}, publisher = {mathdoc}, volume = {353}, number = {4}, year = {1997}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1997_353_4_a2/} }