@article{10_4153_CMB_1969_075_7,
     author = {Thompson, R. C.},
     title = {On the {Matrices} {A} and {f(A)}},
     journal = {Canadian mathematical bulletin},
     pages = {581--587},
     year = {1969},
     volume = {12},
     number = {5},
     doi = {10.4153/CMB-1969-075-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-075-7/}
}