00771nac# 2200205 i 450 VAN007260120240207121120.81520091111f |0itac50 baUS|||| |||||b||||||||||Russian monographs and texts on the physical sciencesNew YorkGordon and Breach001VAN00725992001 Elements of functional analysisL. A. Lusternik, V. J. Sobolev210 New YorkGordon and Breach1961215 XIV, 411 p.22 cmUSNew YorkVANL000011Gordon and Breach <editore>VANV108246650ITSOL20240209RICAVAN0072601Russian monographs and texts on the physical sciences1776436UNICAMPANIA