@article{oai:repository.dl.itc.u-tokyo.ac.jp:00040184,
 author = {Ohtani, Sachiko},
 issue = {3},
 journal = {Journal of mathematical sciences, the University of Tokyo},
 month = {},
 note = {application/pdf},
 pages = {405--423},
 title = {Construction of Unramified Galois Extensions Over Maximal Abelian Extensions of Algebraic Number Fields},
 volume = {9},
 year = {2002}
}