Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MAT_1970_14_2_a3, author = {N. M. Katz and T. Oda}, title = {On the differentiation of de {Rham} cohomology classes with respect to parameters}, journal = {Matematika}, pages = {91--101}, publisher = {mathdoc}, volume = {14}, number = {2}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MAT_1970_14_2_a3/} }
N. M. Katz; T. Oda. On the differentiation of de Rham cohomology classes with respect to parameters. Matematika, Tome 14 (1970) no. 2, pp. 91-101. http://geodesic.mathdoc.fr/item/MAT_1970_14_2_a3/