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@article{JRAM_1969__236_150926, author = {K. Ramachandra}, title = {On the class number of relative abelian fields.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {1--10}, publisher = {mathdoc}, volume = {236}, year = {1969}, zbl = {0175.04601}, url = {http://geodesic.mathdoc.fr/item/JRAM_1969__236_150926/} }
K. Ramachandra. On the class number of relative abelian fields.. Journal für die reine und angewandte Mathematik, Tome 236 (1969), pp. 1-10. http://geodesic.mathdoc.fr/item/JRAM_1969__236_150926/