The class ... is not stable by small deformations.
Campana, F.
Mathematische Annalen, Tome 291 (1991), p. 19-30 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1991-01-01
EUDML-ID : urn:eudml:doc:164809 
@article{GDZPPN002335336,
     title = {The class ... is not stable by small deformations.},
     journal = {Mathematische Annalen},
     volume = {291},
     year = {1991},
     pages = {19-30},
     zbl = {0722.32014},
     url = {http://dml.mathdoc.fr/item/GDZPPN002335336}
}

Campana, F. The class ... is not stable by small deformations.. Mathematische Annalen, Tome 291 (1991) pp. 19-30. http://gdmltest.u-ga.fr/item/GDZPPN002335336/