@article{oai:tsukuba.repo.nii.ac.jp:00015672,
 author = {Baba, Yoshitomo and Harada, Manabu},
 issue = {1},
 journal = {Tsukuba Journal of Mathematics},
 month = {Jun},
 pages = {53--69},
 title = {On almost [mu]-projectives and almost [mu]-injectives},
 volume = {14},
 year = {1990}
}