@article{MZ_1957__68_169701,
     author = {Kiiti Morita and Hiroyuki Tachikawa and Yutaka Kawada},
     title = {On injective modules.},
     journal = {Mathematische Zeitschrift},
     pages = {217--226},
     publisher = {mathdoc},
     volume = {68},
     year = {1957},
     zbl = {0211.36703},
     url = {http://geodesic.mathdoc.fr/item/MZ_1957__68_169701/}
}