@article{ZNSL_1989_170_a13,
     author = {G. Ts. Tumarkin},
     title = {Approximation of functions analytic in a simply connected domain and representable with the help of {Cauchy} type integral by sequences of rational fractions with poles prescribed by a given matrix},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {254--273},
     publisher = {mathdoc},
     volume = {170},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1989_170_a13/}
}