%0 Journal Article %A A. N. Vasil'ev %T Stability of an interaction against spontaneous production of an average boson field %J Teoretičeskaâ i matematičeskaâ fizika %D 1973 %P 24-33 %V 17 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1973_17_1_a2/ %G ru %F TMF_1973_17_1_a2