@article{1102636169, author = {Laursen, K. B.}, title = {Operators with finite ascent.}, journal = {Pacific J. Math.}, volume = {156}, number = {2}, year = {1992}, pages = { 323-336}, language = {en}, url = {http://dml.mathdoc.fr/item/1102636169} }
Laursen, K. B. Operators with finite ascent.. Pacific J. Math., Tome 156 (1992) no. 2, pp. 323-336. http://gdmltest.u-ga.fr/item/1102636169/