Geodesic
Integral Estimates of Lengths of Level Lines of Rational Functions and Zolotarev's Problem
Matematičeskie zametki, Tome 94 (2013) no. 3, pp. 331-337

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Integral estimates of lengths of level lines (lemniscates) of rational functions of a complex variable are obtained. These estimates are related to the problem of separation of compact sets by rational functions and to Zolotarev's problem.
Keywords: integral estimate, rational function, separation of compact sets. 
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     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/}
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V. I. Danchenko. Integral Estimates of Lengths of Level Lines of Rational Functions and Zolotarev's Problem. Matematičeskie zametki, Tome 94 (2013) no. 3, pp. 331-337. http://geodesic.mathdoc.fr/item/MZM_2013_94_3_a1/