%0 Journal Article %T Regularly Varying Solutions of Second-Order Difference Equations with Arbitrary Sign Coefficient %A Serena Matucci %A Pavel Ř %A ehá %A k %J Advances in Difference Equations %D 2010 %I Springer %R 10.1155/2010/673761 %U http://dx.doi.org/10.1155/2010/673761