@article{NUMA_1976__26_132419,
     author = {E.B. Saff and R.S. Varga},
     title = {On the {Sharpness} of {Theorems} {Concerning} {Zero-Free} {Regions} for {Certain} {Sequences} of {Polynomials.}},
     journal = {Numerische Mathematik},
     pages = {345--354},
     publisher = {mathdoc},
     volume = {26},
     year = {1976},
     zbl = {0339.26018},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1976__26_132419/}
}