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Mathematical Methods in the Applied Sciences > 44 > 10 > 8333 - 8344
International Journal of Thermal Sciences > 2017 > 112 > C > 421-426
Open Physics > 2013 > 11 > 10 > 1387-1391
Open Physics > 2013 > 11 > 10 > 1387-1391
Central European Journal of Physics > 2013 > 11 > 10 > 1387-1391