K. Kniffki

Demonstration of nonlinear components in heart rate variability of healthy persons.

A. Freking, C. Braun, P. Kowallik, 1998, American journal of physiology. Heart and circulatory physiology.

Demonstration of nonlinear components in heart rate variability of healthy persons.

A. Freking, C. Braun, P. Kowallik, 1998, The American journal of physiology.

Counting statistics of f−β fluctuations: a new method for analysis of earthquake data

C. Braun, K. Kniffki, M. Meesmann, 1996 .

General relation between variance-time curve and power spectral density for point processes exhibiting 1/fβ-fluctuations, with special reference to heart rate variability

Malte Meesmann, Klaus-Dietrich Kniffki, Dante R. Chialvo, 1995, Biological Cybernetics.