Applied Mathematics and Computation
Applied Mathematics and Computation > 2012 > 219 > 4 > 1737-1748
Applied Mathematics and Computation > 2012 > 219 > 4 > 1821-1832
Applied Mathematics and Computation > 2012 > 219 > 4 > 1737-1748
Applied Mathematics and Computation > 2012 > 219 > 4 > 1821-1832