TY  - DATA
AU  - Graff, Richard A.
TI  - Elements of non-linear functional analysis 
T2  - Memoirs of the American Mathematical Society, 
SN  - 9781470403539 (online)
PY  - 1978///
CY  - Providence, R.I.
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0206
ER  -