@article{Kranz:2019,
  author  = "R. Kranz and A. Rzepka and E. Sylwestrzak-Maślanka",
  title   = "Degrees of the approximations by some special matrix means of conjugate Fourier series",
  journal = "Demonstratio Mathematica",
  volume  = "Vol. 52",
  number  = "iss. 1",
  pages   = "116--129",
  year    = "2019",
}