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International Journal of Applied Mathematics and Computer Science > 2017 > 27 > 1 > 133-155
Applicationes Mathematicae > 1995 > 23 > 3 > 325-338
International Journal of Applied Mathematics and Computer Science > 2017 > 27 > 1 > 133-155
Applicationes Mathematicae > 1995 > 23 > 3 > 325-338