K. Schmidt

Investigations of different aspects of the complex organization of the heart rate in the phase space

Dirk Hoyer, Ulrich Zwiener, Reinhard Bauer, 1995, Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society.

Practical problems of determining the dimensions of heart rate data

U. Zwiener, D. Hoyer, K. Schmidt, 2006, Medical and Biological Engineering and Computing.