@article{10_4153_CMB_1995_014_3,
     author = {Nagahara, Takasi},
     title = {On {Traces} of {Separable} {Simple} {Sub} {Algebras} in {Matrix} {Rings}},
     journal = {Canadian mathematical bulletin},
     pages = {104--111},
     year = {1995},
     volume = {38},
     number = {1},
     doi = {10.4153/CMB-1995-014-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1995-014-3/}
}