@article{oai:soar-ir.repo.nii.ac.jp:00012164,
 author = {IMAI,  TAKAO and YOKOTA,  ICHIRO},
 issue = {2},
 journal = {信州大学理学部紀要},
 month = {Mar},
 note = {Article, 信州大学理学部紀要 15(2): 47-52(1981)},
 pages = {47--52},
 title = {Another definitions of exceptional simple Lie groups of type E₇₍₋₂₅₎ and E₇₍₋₁₃₃₎},
 volume = {15},
 year = {1981}
}