Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
Harada Manabu,Perfect categories. III. Hereditary and QF-3 categories,Osaka Journal of Mathematics,0030-6126,"Osaka University and Osaka City University, Departments of Mathematics",1973,10,2,357-367,https://cir.nii.ac.jp/crid/1390290699787140352,https://doi.org/10.18910/11420