TY  - BOOK
AU  - John,Fritz
TI  - Plane waves and spherical means : applied to partial differential equations / 
SN  - 048643804X
U1  - 515.353 
PY  - 2004///
CY  - N Y : 
PB  - Dover Publications , 
KW  - DIFFERENTIAL EQUATIONS
N1  - Includes index
ER  -