%0 Journal Article %A V. S. Kuz'min %A A. P. Saiko %A A. P. Ul'yanenkov %T Phase transition of order-order type in a generalized dicke model with allowance for adiabatic electron–phonon interaction %J Teoretičeskaâ i matematičeskaâ fizika %D 1989 %P 435-438 %V 80 %N 3 %U http://geodesic.mathdoc.fr/item/TMF_1989_80_3_a10/ %G ru %F TMF_1989_80_3_a10