1. The Einthoven string galvanometer and the interpretation of the T wave of the electrocardiogram;Adrian, R.H.; Channell, R.C.; Cohen, I.; Noble, D.;J'ournal of Physiology,1976
2. Wailer's demonstrations of the human electrocardiogram;Besterman, E.M.M.; Creese, R.; Widdas, W.F.;Journal of Physiology,1976
3. A capillary electrometer;Campbell, F.W.; Pelli, D.;Journal of Physiology,1976
4. Augustus Desire Waller (1856-1922);Cope, Zachary;Medical History,1973
5. The different forms of the human electrocardiogram and their significance;Einthoven, W.;Lancet,1912