TY  - BOOK
AU  - Bourguignon,J-P.,et al (eds)
ED  - Bartolomeis, P.D
ED  - Giaquinta, M
TI  - Geometric theroy of singular phenomena in partial differential equaions
T2  - Symposia mathematica 38
SN  - 9780521632461
U1  - 10.02+13.07 
PY  - 1998///
CY  - Cambridge
PB  - Cambridge University Press
ER  -