@article{MZM_2013_94_3_a1,
     author = {V. I. Danchenko},
     title = {Integral {Estimates} of {Lengths} of {Level} {Lines} of {Rational} {Functions} and {Zolotarev's} {Problem}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {331--337},
     publisher = {mathdoc},
     volume = {94},
     number = {3},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2013_94_3_a1/}
}