%0 Journal Article %A E. D. Belokolos %A D. Ya. Petrina %T Connection between the approximating Hamiltonian method and theta-function integration %J Teoretičeskaâ i matematičeskaâ fizika %D 1984 %P 61-71 %V 58 %N 1 %U http://geodesic.mathdoc.fr/item/TMF_1984_58_1_a4/ %G ru %F TMF_1984_58_1_a4