@article{oai:tsukuba.repo.nii.ac.jp:00016153,
 author = {Hironaka-Kobayashi, Yumiko},
 issue = {2},
 journal = {Tsukuba Journal of Mathematics},
 month = {Dec},
 pages = {157--175},
 title = {Class groups of group rings whose coefficients are algebraic integers},
 volume = {6},
 year = {1982}
}