@article{GDZPPN002421240, title = {Operators with Absolutely Bounded Matrices.}, journal = {Mathematische Zeitschrift}, volume = {162}, year = {1978}, pages = {183-188}, zbl = {0368.47014}, url = {http://dml.mathdoc.fr/item/GDZPPN002421240} }
Sourour, Ahmed Ramzi. Operators with Absolutely Bounded Matrices.. Mathematische Zeitschrift, Tome 162 (1978) pp. 183-188. http://gdmltest.u-ga.fr/item/GDZPPN002421240/