@article{RCM_1989__23_1-4_181822,
     author = {G. Prasad and S. P. Singh and M. K. Tiwari},
     title = {On the degree of simultaneous approximation by modified {Bernstein} polynomials},
     journal = {Revista colombiana de matematicas},
     pages = {35--40},
     publisher = {mathdoc},
     volume = {23},
     number = {1-4},
     year = {1989},
     zbl = {0715.41026},
     url = {http://geodesic.mathdoc.fr/item/RCM_1989__23_1-4_181822/}
}