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@article{MAN_1958__136_160652, author = {W. Engel}, title = {Ganze {Cremona-Transformationen} von {Primzahlgrad} in der {Ebene.}}, journal = {Mathematische Annalen}, pages = {319--325}, publisher = {mathdoc}, volume = {136}, year = {1958}, zbl = {0082.36502}, url = {http://geodesic.mathdoc.fr/item/MAN_1958__136_160652/} }
W. Engel. Ganze Cremona-Transformationen von Primzahlgrad in der Ebene.. Mathematische Annalen, Tome 136 (1958), pp. 319-325. http://geodesic.mathdoc.fr/item/MAN_1958__136_160652/