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Struglia, M.V., Mariotti, A. and Filogrosso, A. (2004)River discharge into the Mediterranean Sea:Climatology and aspects of the observed variability. Journal of Climate 17, 4750-4751; Ludwig, W., Dumont, E., Meybeck, M. and Heussner, S. (2009), River discharges of water and nutrients to the Mediterranean and Black Sea: Major drivers for ecosystem changes during past and future decades? Prog. Oceanogr. 80, 199-217.