@article{ZNSL_2016_449_a3,
     author = {V. N. Dubinin},
     title = {Critical values and moduli of derivative of a~complex polynomial at its zeros},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {60--68},
     publisher = {mathdoc},
     volume = {449},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2016_449_a3/}
}