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Mediterranean Journal of Mathematics > 2017 > 14 > 2 > 1-12
Applied Mathematics and Computation > 2011 > 217 > 19 > 7588-7598
Computers and Mathematics with Applications > 2008 > 55 > 8 > 1720-1734
Linear Algebra and Its Applications > 2007 > 422 > 2-3 > 526-539