TY  - BOOK
AU  - Bernfeld,Stephen R.
AU  - Lakshmikantham,V.
TI  - An introduction to nonlinear boundary value problems
SN  - 0120931508 :
U1  - 517.38 
PY  - 1974///
CY  - New York
PB  - Academic Press
KW  - Nonlinear boundary value problems
KW  - Nonlinear theories
N1  - Includes index; Bibliography: p. 368-381
ER  -