TY  - JOUR
AU  - F. Campana
TI  - The class ... is not stable by small deformations.
JO  - Mathematische Annalen
PY  - 1991
SP  - 19
EP  - 30
VL  - 290
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1991__290_4_164809/
ID  - MAN_1991__290_4_164809
ER  -