@article{oai:repository.dl.itc.u-tokyo.ac.jp:00039903, author = {Miwa, Megumu}, issue = {1}, journal = {Journal of the Faculty of Science, University of Tokyo. Sect. 1, Mathematics, astronomy, physics, chemistry = 東京大學理學部紀要. 第1類, 數學, 天文學, 物理學, 化學}, month = {Oct}, note = {application/pdf}, pages = {39--45}, title = {Extension of group varieties and generalized Jacobian varieties}, volume = {11}, year = {1964} }