@article{oai:ehime-u.repo.nii.ac.jp:00002108,
 author = {OKAMOTO, Toshiaki},
 issue = {2},
 journal = {愛媛大学教育学部紀要. 第III部, 自然科学},
 month = {Feb},
 pages = {1--32},
 title = {A Table of Congruences on Units in Quadratic Number Fields},
 volume = {13},
 year = {1993}
}