Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_2003_17_3-4_a5, author = {S. Hakkaev and R. Nickolov and Zh. Zhelev}, title = {Subscalarity of a {Class} of {Triangular} {Operator} {Matricies}}, journal = {Mathematica balkanica}, pages = {231}, publisher = {mathdoc}, volume = {17}, number = {3-4}, year = {2003}, url = {http://geodesic.mathdoc.fr/item/MABA_2003_17_3-4_a5/} }
S. Hakkaev; R. Nickolov; Zh. Zhelev. Subscalarity of a Class of Triangular Operator Matricies. Mathematica balkanica, Tome 17 (2003) no. 3-4, p. 231. http://geodesic.mathdoc.fr/item/MABA_2003_17_3-4_a5/