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 Hossein Zeinivand and  Florimond De Smedt,  Simulation of Snow Covers Area by a Physical based Model.   journal   = {International Journal of Environmental, Chemical, Ecological, Geological and Geophysical Engineering}, [online]. World Academy of Science, Engineering and Technology. July 2009, vol. 31(7). 206 - 211[viewed 19 November 2017]. Available from: http://waset.org/publications/1395.