TY  - BOOK
AU  - Rodrigues,J-F
TI  - Obstacle problems in mathematical physics
T2  - North-holland mathematics studies134 Notas de matematica 114
SN  - 0 444 70187 7
U1  - 530.15 
PY  - 1987///
CY  - Amsterdam
PB  - North-Holland Pub. Co.
ER  -