%0 Journal Article %A V. Yu. Lazur %A Yu. Yu. Mashika %A R. K. Janev %A T. P. Grozdanov %T Quasicrossing of rydberg terms in the problem of two Coulomb centers with strongly differing charges %J Teoretičeskaâ i matematičeskaâ fizika %D 1991 %P 97-109 %V 87 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1991_87_1_a9/ %G ru %F TMF_1991_87_1_a9