TY  - BOOK
AU  - Friedman,Avner
TI  - Variational principles and free-boundary problems
PY  - 1982///
CY  - New York
PB  - Wiley
KW  - Boundary value problems
KW  - Variational principles
N1  - 'A Wiley-Interscience publication.'; Includes bibliographical references and index
ER  -