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@article{MZ_1967__98_170743, author = {V.F. Cowling}, title = {Inclusion {Relations} {Between} {Matrices.}}, journal = {Mathematische Zeitschrift}, pages = {192--195}, publisher = {mathdoc}, volume = {98}, year = {1967}, zbl = {0147.04902}, url = {http://geodesic.mathdoc.fr/item/MZ_1967__98_170743/} }
V.F. Cowling. Inclusion Relations Between Matrices.. Mathematische Zeitschrift, Tome 98 (1967), pp. 192-195. http://geodesic.mathdoc.fr/item/MZ_1967__98_170743/