@article{oai:u-ryukyu.repo.nii.ac.jp:02005432,
 author = {Maeda, Takashi and 前田, 高士},
 journal = {Ryukyu mathematical journal},
 month = {Jan},
 note = {紀要論文},
 pages = {7--23},
 title = {On the rationality of the invariant field under the action of SL(3,C) with signature (2,1)},
 volume = {3},
 year = {1991}
}