@article{oai:tsukuba.repo.nii.ac.jp:00016167,
 author = {Hirata, Kazuhiko},
 issue = {1},
 journal = {Tsukuba Journal of Mathematics},
 month = {Jun},
 pages = {63--66},
 title = {On trivial extensions which are quasi-Frobenius ones},
 volume = {6},
 year = {1982}
}