@article{ZNSL_1998_254_a6,
     author = {E. G. Emel'yanov},
     title = {Extremal decompositions of {a~Riemann} surface and quasiconformal mappings of a special type},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {108--115},
     publisher = {mathdoc},
     volume = {254},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1998_254_a6/}
}