TY  - BOOK
AU  - Lusternik,L.A.
AU  - Sobolev,V.J.
TI  - Elements of functional analysis 
U1  - 517.5 LUS S  
PY  - 1961///.
CY  - Delhi : 
PB  - Hindustan Publishing Corporation, 
KW  - Functional analysis
N1  - Includes index.
ER  -