@article{10_4064_aa_55_2_157_170,
     author = {Kuniaki Horie and Mitsuko Horie},
     title = {CM-fields and exponents of their ideal class groups},
     journal = {Acta Arithmetica},
     pages = {157--170},
     publisher = {mathdoc},
     volume = {55},
     number = {2},
     year = {1990},
     doi = {10.4064/aa-55-2-157-170},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-55-2-157-170/}
}