@Article{npg-11-463-2004, AUTHOR = {Laio, F. and Porporato, A. and Ridolfi, L. and Tamea, S.}, TITLE = {Detecting nonlinearity in time series driven by non-Gaussian noise: the case of river flows}, JOURNAL = {Nonlinear Processes in Geophysics}, VOLUME = {11}, YEAR = {2004}, NUMBER = {4}, PAGES = {463--470}, URL = {http://www.nonlin-processes-geophys.net/11/463/2004/}, ISSN = {1023-5809} }