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@article{MM2_1987__58_155219, author = {Hiroyuki Osada}, title = {Note on the class-number of the maximal real subfield of a cyclomatic field.}, journal = {Manuscripta mathematica}, pages = {215--228}, publisher = {mathdoc}, volume = {58}, year = {1987}, zbl = {0602.12002}, url = {http://geodesic.mathdoc.fr/item/MM2_1987__58_155219/} }
Hiroyuki Osada. Note on the class-number of the maximal real subfield of a cyclomatic field.. Manuscripta mathematica, Tome 58 (1987), pp. 215-228. http://geodesic.mathdoc.fr/item/MM2_1987__58_155219/