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Journal of Contemporary Mathematical Analysis (Armenian Academy of Sciences) > 2013 > 48 > 6 > 297-309
Applied Mathematics and Computation > 2007 > 187 > 1 > 35-46
Journal of Contemporary Mathematical Analysis (Armenian Academy of Sciences) > 2013 > 48 > 6 > 297-309
Applied Mathematics and Computation > 2007 > 187 > 1 > 35-46