@article{oai:repository.dl.itc.u-tokyo.ac.jp:00039742, author = {Takeuchi, Mitsuhiro and Iwahori, N.}, issue = {2}, 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 = {Aug}, note = {application/pdf}, pages = {419--434}, title = {On coverings and hyperalgebras of affine algebraic groups, II}, volume = {23}, year = {1976} }