Applied Mathematics and Computation
Applied Mathematics and Computation > 2009 > 215 > 2 > 481-494
Applied Mathematics and Computation > 2013 > 219 > 15 > 8338-8357
Applied Mathematics and Computation > 2009 > 215 > 2 > 481-494
Applied Mathematics and Computation > 2013 > 219 > 15 > 8338-8357