@article{10_4064_aa_92_4_319_338,
     author = {Ryotaro Okazaki},
     title = {Inclusion of {CM-fields} and divisibility ofrelative class numbers},
     journal = {Acta Arithmetica},
     pages = {319--338},
     publisher = {mathdoc},
     volume = {92},
     number = {4},
     year = {2000},
     doi = {10.4064/aa-92-4-319-338},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-92-4-319-338/}
}