@article{10_4064_aa_62_3_297_301,
     author = {Kurt Girstmair},
     title = {On the branch order of the ring of integers of an abelian number field},
     journal = {Acta Arithmetica},
     pages = {297--301},
     publisher = {mathdoc},
     volume = {62},
     number = {3},
     year = {1992},
     doi = {10.4064/aa-62-3-297-301},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-62-3-297-301/}
}