TY  - BOOK
AU  - Vainberg M M
AU  - Feinstein Amiel
TI  - Variational methods for the study of nonlinear operators
U1  - 515.7248 
PY  - 1964///
CY  - London
PB  - Holdenday
KW  - Calculus
KW  - Nonlinear operator
ER  -