@article{1102991596, author = {Boyd, David W.}, title = {The spectral radius of averaging operators.}, journal = {Pacific J. Math.}, volume = {27}, number = {3}, year = {1968}, pages = { 19-28}, language = {en}, url = {http://dml.mathdoc.fr/item/1102991596} }
Boyd, David W. The spectral radius of averaging operators.. Pacific J. Math., Tome 27 (1968) no. 3, pp. 19-28. http://gdmltest.u-ga.fr/item/1102991596/