%0 Journal Article %A Paul Leo Butzer %A Harun Karsli %T Voronovskaya-Type Theorems for Derivatives of the Bernstein-Chlodovsky Polynomials and the Szász-Mirakyan Operator %J Commentationes Mathematicae %D 2009 %P 33-58 %V 49 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/cm.v49i1.5277/ %R 10.14708/cm.v49i1.5277 %G pl %F 10_14708_cm_v49i1_5277