%0 Journal Article %A Mahmudov, Nazim I. %T Approximation properties of bivariate complex $q$-Bernstein polynomials in the case $q>1$ %J Czechoslovak Mathematical Journal %D 2012 %P 557-566 %V 62 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1007/s10587-012-0029-2/ %R 10.1007/s10587-012-0029-2 %G en %F 10_1007_s10587_012_0029_2