1. Automatic determination of systolic time intervals;Donders,1976
2. Automatic determination of systolic time intervals;Donders,1975
3. A low cost general purpose analogue QRS wave detector;Hacke;Med. Biol. Eng.,1974
4. Systolic time intervals in the non-invasive assessment of left ventricular performance in man in ‘Cardiac Mechanics’;Harris,1974
5. Measurement of QD systolic time interval with an earlobe densitometer;Korbell;Biomed. Eng.,1974