@article{COMIM_2014__22_2_a1,
     author = {Hirabayashi, Mikihito},
     title = {A determinant formula for the relative class number of an imaginary abelian number field},
     journal = {Communications in Mathematics},
     pages = {133--140},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {2014},
     mrnumber = {3303134},
     zbl = {06410230},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/COMIM_2014__22_2_a1/}
}