@article{MAN_1961__143_160849,
     author = {K.G. WOLFSON},
     title = {Baer {Rings} of {Endomorphisms.}},
     journal = {Mathematische Annalen},
     pages = {19--28},
     year = {1961},
     volume = {143},
     zbl = {0103.02202},
     url = {http://geodesic.mathdoc.fr/item/MAN_1961__143_160849/}
}