@article{oai:tsukuba.repo.nii.ac.jp:00017134,
 author = {Ikeda, Kazuma},
 issue = {2},
 journal = {Tsukuba Journal of Mathematics},
 month = {Oct},
 pages = {305--331},
 title = {Normal forms for derivations in Arai's AI^-_ζ},
 volume = {22},
 year = {1998}
}