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Open Mathematics > 2013 > 11 > 12 > 2186-2196
Linear Algebra and Its Applications > 2013 > 438 > 8 > 3365-3374
Central European Journal of Mathematics > 2013 > 11 > 12 > 2186-2196
Linear Algebra and Its Applications > 2012 > 436 > 9 > 3553-3561
Linear Algebra and Its Applications > 2010 > 433 > 11-12 > 2060-2069