TY  - BOOK
AU  - Bjork,J.-E.
TI  - Rings of differential operators
SN  - 0444852921 (American Elsevier)
PY  - 1979///
CY  - Amsterdam
PB  - North-Holland Pub. Co.
KW  - Differential operators
KW  - Rings (Algebra)
N1  - Includes index
ER  -