@article{105036, author = {V\'aclav Havel}, title = {Freie Erweiterungen von Schemen $n$-ten Grades}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {006}, year = {1965}, pages = {443-448}, zbl = {0136.42102}, mrnumber = {0196586}, language = {de}, url = {http://dml.mathdoc.fr/item/105036} }
Havel, Václav. Freie Erweiterungen von Schemen $n$-ten Grades. Commentationes Mathematicae Universitatis Carolinae, Tome 006 (1965) pp. 443-448. http://gdmltest.u-ga.fr/item/105036/
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