@article{10_4064_aa_45_3_215_227,
     author = {Ken Nakamula},
     title = {Class number calculation of a quartic field from the elliptic unit},
     journal = {Acta Arithmetica},
     pages = {215--227},
     publisher = {mathdoc},
     volume = {45},
     number = {3},
     year = {1985},
     doi = {10.4064/aa-45-3-215-227},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-45-3-215-227/}
}