%0 Journal Article %A V. V. Varlamov %T Group averaging for de Sitter free fields in terms of hyperspherical functions %J Teoretičeskaâ i matematičeskaâ fizika %D 2010 %P 473-480 %V 164 %N 3 %U http://geodesic.mathdoc.fr/item/TMF_2010_164_3_a17/ %G ru %F TMF_2010_164_3_a17