TY  - JOUR
AU  - Reinhold Hübl
TI  - On the Transitvity of regular differential Forms.
JO  - Manuscripta mathematica
PY  - 1989
SP  - 213
EP  - 224
VL  - 65
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MM2_1989__65_3_155435/
ID  - MM2_1989__65_3_155435
ER  -