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@article{CM_1971__23_2_169_0, author = {Van Dulst, D.}, title = {On strictly singular operators}, journal = {Compositio Mathematica}, pages = {169--183}, publisher = {Wolters-Noordhoff Publishing}, volume = {23}, number = {2}, year = {1971}, mrnumber = {288621}, zbl = {0212.46402}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CM_1971__23_2_169_0/} }
Van Dulst, D. On strictly singular operators. Compositio Mathematica, Tome 23 (1971) no. 2, pp. 169-183. http://geodesic.mathdoc.fr/item/CM_1971__23_2_169_0/