@article{SM_1985_52_1_a6,
     author = {S. I. Fedorov},
     title = {On a~variational problem of {Chebotarev} in the theory of capacity of plane sets and covering theorems for univalent conformal mappings},
     journal = {Sbornik. Mathematics},
     pages = {115--133},
     publisher = {mathdoc},
     volume = {52},
     number = {1},
     year = {1985},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1985_52_1_a6/}
}