@article{10_4153_CMB_1973_092_x,
     author = {Thompson, R. C. and Therianos, S.},
     title = {The {Eigenvalues} and {Singular} {Values} of {Matrix} {Sums} and {Products.} {VII} (1)},
     journal = {Canadian mathematical bulletin},
     pages = {561--569},
     year = {1973},
     volume = {16},
     number = {4},
     doi = {10.4153/CMB-1973-092-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1973-092-x/}
}