TY  - BOOK
AU  - Ancona, Vincenzo  .
TI  - Hyperbolic differential operators and related problems / 
SN  - 0-8247-0963-2
U1  - B 
PY  - 2003///
CY  - New York : 
PB  - Marcel Dekker, Inc , 
KW  - Mathematics
ER  -