@article{oai:tsukuba.repo.nii.ac.jp:00053609,
 author = {ICHIMURA, Humio},
 issue = {2},
 journal = {Tsukuba Journal of Mathematics},
 month = {Oct},
 pages = {189--199},
 title = {Refined version of Hasse's Satz 45 on class number parity},
 volume = {38},
 year = {2014}
}