© Niklas Bildhauer , CC BY-SA 2.0 book_section / January 01, 1995 Analysis of heart rate variability versus high resolution ECG View in MDC Repository Authors A. Voss J. Kurths H.J. Kleiner A. Witt R. Dietz H. Fiehring P. Saparin N. Wessel Citation 43-54 View in MDC Repository