TY  - BOOK
AU  - ARNOLD Vladimir I
TI  - Lectures on partial differiential equations
SN  - 9788181281821 (pbk)
U1  - B334, P4  TB 
PY  - 2004///
CY  - New York 
PB  - Springer      
KW  -  Differential equation
KW  -  Vibrating string
KW  - Mathematics
ER  -