@article{oai:repository.dl.itc.u-tokyo.ac.jp:00039699, author = {Takeuchi, Mitsuhiro and Iwahori, N.}, issue = {3}, journal = {Journal of the Faculty of Science, the University of Tokyo. Sect. 1 A, Mathematics = 東京大学理学部紀要. 第1類A, 数学}, month = {Dec}, note = {application/pdf}, pages = {629--644}, title = {Morita theorems for categories of comodules}, volume = {24}, year = {1977} }