%0 Journal Article %T Generalized Zeros of 2กม2 Symplectic Difference System and of Its Reciprocal System %A Ondř %A ej Doš %A lý %A Š %A á %A rka Pechancová %J Advances in Difference Equations %D 2011 %I Springer %R 10.1155/2011/571935 %U http://dx.doi.org/10.1155/2011/571935