Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{IM_1973__19_142199, author = {Friedrich Ulmer}, title = {A {Flatness} {Criterion} in {Grothendieck} {Categories.}}, journal = {Inventiones mathematicae}, pages = {331--336}, publisher = {mathdoc}, volume = {19}, year = {1973}, zbl = {0257.18020}, url = {http://geodesic.mathdoc.fr/item/IM_1973__19_142199/} }
Friedrich Ulmer. A Flatness Criterion in Grothendieck Categories.. Inventiones mathematicae, Tome 19 (1973), pp. 331-336. http://geodesic.mathdoc.fr/item/IM_1973__19_142199/