%0 Journal Article %A V. I. Vozyakov %A V. N. Popov %T Functional approach to the investigation of collective exitations in uniform Fermi systems at $T=0$ %J Zapiski Nauchnykh Seminarov POMI %D 1983 %P 28-33 %V 131 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1983_131_a2/ %G ru %F ZNSL_1983_131_a2