@article{ZNSL_1991_196_a2,
     author = {E. G. Goluzina},
     title = {Some extremal problems in the class of functions with bounded boundary rotation of complex order},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {35--40},
     publisher = {mathdoc},
     volume = {196},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1991_196_a2/}
}