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@article{10_4064_aa_81_1_1_10, author = {Yi Ouyang and Fei Xu}, title = {Riemann-Hurwitz formula in basic $\ensuremath{\mathbb{Z}}_S$-extensions}, journal = {Acta Arithmetica}, pages = {1--10}, publisher = {mathdoc}, volume = {81}, number = {1}, year = {1997}, doi = {10.4064/aa-81-1-1-10}, language = {de}, url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-81-1-1-10/} }
Yi Ouyang; Fei Xu. Riemann-Hurwitz formula in basic $ℤ_S$-extensions. Acta Arithmetica, Tome 81 (1997) no. 1, pp. 1-10. doi : 10.4064/aa-81-1-1-10. http://geodesic.mathdoc.fr/articles/10.4064/aa-81-1-1-10/
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