1. S. Ya. Al'per, ?Uniform approximation of functions of a complex variable in a closed region,? Izv. Akad. Nauk SSSR. Ser. Mat.,19, No. 6, 423?444 (1955).
2. ? ?, and V. V. Ivanov, ?Approximation of functions by partial sums of series in Faber polynomials,? Dokl. Akad. Nauk SSSR,90, No. 3, 325?328 (1953).
3. D. L. Berman, ?Linear polynomial operations in a complex domain and Faber polynomials,? Dokl. Akad. Nauk SSSR,178, No. 2, 267?270 (1968).
4. B. A. Vostretsov and A. V. Ignat'eva, ?The rate of approximation of analytic functions on arbitrary continua,? Uch. Zap. Mosk. Gos. Ped. Inst.,57, 45?50 (1957).
5. Ya. L. Geronimus, ?Several systems of polynomials,? Mat. Sb.,3 (45), No. 2, 375?388 (1938).