@article{Żurek:2014,
  author  = "S. Żurek and M. Kośmider and M. Lewandowski and J. Piskorski and P. Guzik and P. Castiglioni",
  title   = "Day-to-night variation of the RR intervals in 3D entropy profiles estimated by the norm component matrix algorithm",
  journal = "Folia Cardiologica",
  volume  = "T. 9",
  number  = "supl. A",
  pages   = "26",
  year    = "2014",
}