@article{ZNSL_1991_196_a7,
     author = {G. V. Kuz'mina},
     title = {The problems of extremal decomposition, and the coefficient inequalities in the class~$\Sigma(r)$},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {101--116},
     year = {1991},
     volume = {196},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1991_196_a7/}
}