%0 Journal Article %A M. L. Kharakhan %T Analytic properties of an exactly solvable nonrelativistic two-channel scattering problem %J Teoretičeskaâ i matematičeskaâ fizika %D 1970 %P 262-275 %V 5 %N 2 %U http://geodesic.mathdoc.fr/item/TMF_1970_5_2_a8/ %G ru %F TMF_1970_5_2_a8