@article{MZ_1974__140_172135,
     author = {Goro Azumaya},
     title = {Characterizations of {Semi-Perfect} and {Perfect} {Modules.}},
     journal = {Mathematische Zeitschrift},
     pages = {95--104},
     publisher = {mathdoc},
     volume = {140},
     year = {1974},
     zbl = {0289.16017},
     url = {http://geodesic.mathdoc.fr/item/MZ_1974__140_172135/}
}