@article{Kranz:2019,
  author  = "R. Kranz and A. Rzepka and E. Sylwestrzak-Ma¶lanka",
  title   = "Degrees of the approximation of integrable functions by some special matrix means of Fourier series",
  journal = "Publications de l'Institut Mathématique (Beograd) : Nouvelle série",
  volume  = "Vol. 105",
  number  = "iss. 119",
  pages   = "39--47",
  year    = "2019",
}