@article{PORMA_1990__47_1_115705,
     author = {Silva, Fernando C.},
     title = {Matrices with prescribed similarity class and a prescribed nonprincipal submatrix},
     journal = {Portugaliae mathematica},
     pages = {103--113},
     publisher = {mathdoc},
     volume = {47},
     number = {1},
     year = {1990},
     mrnumber = {1079511},
     zbl = {0716.15010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1990__47_1_115705/}
}