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@article{PIM_1998_N_S_63_77_a16, author = {O. Agratini}, title = {Asymptotic {Formulae} for {Recursively} {Defined} {Baskakov-type} {Operators}}, journal = {Publications de l'Institut Math\'ematique}, pages = {152 }, publisher = {mathdoc}, volume = {_N_S_63}, number = {77}, year = {1998}, zbl = {1009.41017}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PIM_1998_N_S_63_77_a16/} }
O. Agratini. Asymptotic Formulae for Recursively Defined Baskakov-type Operators. Publications de l'Institut Mathématique, _N_S_63 (1998) no. 77, p. 152 . http://geodesic.mathdoc.fr/item/PIM_1998_N_S_63_77_a16/