TY  - BOOK
AU  - Hormander,Lars
TI  - Linear partial differential operators
U1  - 517.383 
PY  - 1969///
CY  - Berlin
PB  - Springer
KW  - Differential equations, Partial
KW  - Partial differential operators
KW  - Differential operators
N1  - Bibliography: p. 280-285
ER  -