Preservation properties of the Baskakov-Kantorovich operators. - Chungou Zhang; Zhihui Zhu (Comput. Math. Appl., 2009)

The Complete asymptotic Expansions for the SzáSz-Mirakian-Type Operators. - Chungou Zhang; Quan-E. Wang (Int. J. Wavelets Multiresolution Inf. Process., 2009)