@article{oai:ehime-u.repo.nii.ac.jp:02000142,
 author = {KIMURA, Hiroshi and OHMORI, Hiroyuki},
 journal = {愛媛大学教育学部紀要. 第III部, 自然科学},
 month = {Feb},
 pages = {7--57},
 title = {Hadamard Matrices of Order 28},
 volume = {7},
 year = {1987}
}