@article{IM_1978__45_142538,
     author = {A.R. Reddy},
     title = {On {Certain} {Problems} of {Chebyshev,} {Zolotarev,} {Bernstein} and {Akhieser.}},
     journal = {Inventiones mathematicae},
     pages = {83--110},
     year = {1978},
     volume = {45},
     zbl = {0423.41002},
     url = {http://geodesic.mathdoc.fr/item/IM_1978__45_142538/}
}