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Mathematical and Computer Modelling > 2013 > 57 > 7-8 > 1891-1896
Mathematical and Computer Modelling > 2010 > 52 > 7-8 > 1052-1057
Mathematical and Computer Modelling > 2013 > 57 > 7-8 > 1891-1896
Mathematical and Computer Modelling > 2010 > 52 > 7-8 > 1052-1057