@article{PIM_1991_N_S_49_63_a13,
     author = {Vijay Gupta and P. N. Agrawal},
     title = {An {Estimate} {Of} {The} {Rate} {Of} {Convergence} {For} {Modified} {Sz\'asz-Mirakyan} {Operators} {Of} {Function} {Of} {Bounded} {Variation}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {97 },
     publisher = {mathdoc},
     volume = {_N_S_49},
     number = {63},
     year = {1991},
     url = {http://geodesic.mathdoc.fr/item/PIM_1991_N_S_49_63_a13/}
}