H Schieffer

[A new force vector ballistocardiograph (author's transl)].

N Sternitzke, H Schwerdt, L Bette, 1980, Biomedizinische Technik. Biomedical engineering.

A Fractally Coated, 1.3 mm2 High Impedance Pacing Electrode

A Bolz, M Schaldach, H Schwerdt, 1998, Pacing and clinical electrophysiology : PACE.

Atrial defibrillation: can modifications in current implantable cardioverter-defibrillators achieve this?

H Schieffer, A. Heisel, R. Fries, 1996, The American journal of cardiology.