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Open Mathematics > 2012 > 10 > 6 > 2003-2011
Central European Journal of Mathematics > 2012 > 10 > 6 > 2003-2011
Journal of Complexity > 2009 > 25 > 6 > 530-543
Applied Mathematics and Computation > 2004 > 157 > 3 > 667-675
Open Mathematics > 2012 > 10 > 6 > 2003-2011
Central European Journal of Mathematics > 2012 > 10 > 6 > 2003-2011
Journal of Complexity > 2009 > 25 > 6 > 530-543
Applied Mathematics and Computation > 2004 > 157 > 3 > 667-675