@article{ZNSL_1988_168_a5,
     author = {V. N. Dubinin},
     title = {The separating transformation of domains and problems on the extremal partition},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {48--66},
     publisher = {mathdoc},
     volume = {168},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1988_168_a5/}
}