References
- Elmquist R., Senning A. Proceedings of the 2nd International Conference on Medical Electronics, London, 1959
- Kenny J. Cardiac pacemakers. IEE Medical Electronics Monographs, D. W. Hill, B. W. Watson. Peter Peregrinus. 1974; 82–104
- Bisping H. J., Irnich W., Silny J., Effert S. The importance of constancy of period in checking implanted pacemakers. Biomedical Engineering, 1974. May, 1974
- Green G. D., Thomas D. L. 1974 A vectorcardiograph for assessing implanted cardiac pacemakers. Medical & Biological Engineering Sept, 1974
- Green G. D., Thomas D. L. 1974 Improvements in the technique of assessing implanted cardiac pacemakers. Medical & Biological Engineering Sept, 1974
- National Health Service:. Hospital technical memorandum number eight (H.T.M.8), safety code for electromedical apparatus
- Green G. D. The assessment & performance of implanted cardiac pacemakers. Butterworths. 1975
- Darrington P. R. 1974 Digital and analogue dividers. Wireless World. Nov, 1974