@article{1102699560, author = {Astala, K. and Ramanujan, M. S.}, title = {$(s)$-nuclear sets and operators.}, journal = {Pacific J. Math.}, volume = {130}, number = {2}, year = {1987}, pages = { 233-246}, language = {en}, url = {http://dml.mathdoc.fr/item/1102699560} }
Astala, K.; Ramanujan, M. S. $(s)$-nuclear sets and operators.. Pacific J. Math., Tome 130 (1987) no. 2, pp. 233-246. http://gdmltest.u-ga.fr/item/1102699560/