@article{oai:seijo.repo.nii.ac.jp:00001847,
 author = {関本, 年彦},
 issue = {136},
 journal = {成城大學經濟研究},
 month = {Mar},
 note = {P(論文)},
 pages = {129--142},
 title = {2線形部分空間がなす角 (中村英雄名誉教授追悼号)},
 year = {1997}
}