Universal fluctuations of the Danube water level: A link with turbulence, criticality and company growthS. T. Bramwell, T. Fennell, P. C. W. Holdsworth and B. PortelliEurophys. Lett., 57 3 (2002) 310-314DOI: https://doi.org/10.1209/epl/i2002-00461-5