@article{oai:ynu.repo.nii.ac.jp:00006458,
 author = {Takasu, Tsurusaburo},
 journal = {Yokohama Mathematical Journal = 横濱市立大學紀要. D部門, 数学},
 month = {},
 note = {application/pdf},
 pages = {31--120},
 title = {A THEORY OF DOUBLY EXTENDED LIE TRANSFORMATION GROUPS.},
 volume = {13},
 year = {1965}
}