@article{10_4064_fm_86_3_237_250,
     author = {Micha{\l} Jaegermann},
     title = {Normal radicals of endomorphism rings of free and projective modules},
     journal = {Fundamenta Mathematicae},
     pages = {237--250},
     publisher = {mathdoc},
     volume = {86},
     number = {3},
     year = {1974},
     doi = {10.4064/fm-86-3-237-250},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-86-3-237-250/}
}