TY  - JOUR
AU  - Blanco, Ricardo J. Alonso
TI  - $\Cal D$-modules, contact valued calculus and Poincaré-Cartan form
JO  - Czechoslovak Mathematical Journal
PY  - 1999
SP  - 585
EP  - 606
VL  - 49
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMJ_1999__49_3_a10/
LA  - en
ID  - CMJ_1999__49_3_a10
ER  -