TY  - GEN
AU  - van den Essen, Arno
TI  - Halonomic modules winth irregular singularities on a singular curve: To appear in the proccedings of the Antwerpen Congres "Filtered Rings", June 1988
PY  - 1988///
CY  - Nijmegen
PB  - Departament of Mathematics Catholic University
N1  - Contine bibliogr
ER  -