@article{10_4153_CJM_1967_020_6, author = {Botta, E. P.}, title = {Linear {Transformations} on {Matrices:} {The} {Invariance} of a {Class} of {General} {Matrix} {Functions}}, journal = {Canadian journal of mathematics}, pages = {281--290}, year = {1967}, volume = {19}, number = {1}, doi = {10.4153/CJM-1967-020-6}, url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-020-6/} }