@article{GDZPPN002472554, title = {Remarks on an Existence Theorem in Matrix Theory Due to A. Horn.}, journal = {Monatshefte f\"ur Mathematik}, volume = {63}, year = {1959}, pages = {241-243}, zbl = {0090.01503}, url = {http://dml.mathdoc.fr/item/GDZPPN002472554} }
Mirsky, L. Remarks on an Existence Theorem in Matrix Theory Due to A. Horn.. Monatshefte für Mathematik, Tome 63 (1959) pp. 241-243. http://gdmltest.u-ga.fr/item/GDZPPN002472554/