@article{oai:ynu.repo.nii.ac.jp:00006463,
 author = {Ohkuma, Tadashi},
 issue = {1&2},
 journal = {Yokohama Mathematical Journal = 横濱市立大學紀要. D部門, 数学},
 month = {},
 note = {application/pdf},
 pages = {17--37},
 title = {ULTRAPOWERS IN CATEGORIES},
 volume = {14},
 year = {1966}
}