%0 Journal Article %A E. B. Yarovaya %T Use of spectral methods to study branching processes with diffusion in a~noncompact phase space %J Teoretičeskaâ i matematičeskaâ fizika %D 1991 %P 25-30 %V 88 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1991_88_1_a4/ %G ru %F TMF_1991_88_1_a4