Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_1990_4_1_a3, author = {Lawrence A. Fialkow and Hector Salas}, title = {Majorization, {Factorization} and {Systems} of {Linear} {Operator} {Equations}}, journal = {Mathematica balkanica}, pages = {22}, publisher = {mathdoc}, volume = {4}, number = {1}, year = {1990}, url = {http://geodesic.mathdoc.fr/item/MABA_1990_4_1_a3/} }
Lawrence A. Fialkow; Hector Salas. Majorization, Factorization and Systems of Linear Operator Equations. Mathematica balkanica, Tome 4 (1990) no. 1, p. 22. http://geodesic.mathdoc.fr/item/MABA_1990_4_1_a3/