%0 Journal Article %A S. I. Dudkin %T Calculation of correlation functions for interacting quasiparticles in crystals %J Teoretičeskaâ i matematičeskaâ fizika %D 1973 %P 406-413 %V 16 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1973_16_3_a11/ %G ru %F TMF_1973_16_3_a11