1. Harrison, D.C., J.W. Fitzgerald, and R.A. Winkle, Ambulatory electrocardiography for diagnosis and treatment of cardiac arrhythmias. N. Engl. J. Med., 1976;294: 373–380.
2. Hinkle, L.E., Jr., Equipment specifications and analytic techniques: clinical implications, in Ambulatory Electrocardiographic Recording, N.K. Wenger, M.B. Mock, and I. Ringqvist, Editors. Chicago, IL: Year Book Medical, 1981, pp. 33–57.
3. Holter, N.J., New method for heart studies: continuous electrocardiography of active subjects over long periods is now practical. Science, 1961;134: 1214–1220.
4. Kennedy, H.L., Ambulatory Electrocardiography – Current Clinical Concepts. Cardiol. Clin.; Philadelphia/London/Toronto/Montreal/Sydney/Tokyo: W.B. Saunders, 1992.
5. Van Keulen. G.J., J. Boter, C.A.A. Hakkenberg Van Gaasbeek, and G.E.P.M. Van Venrooij, MFI Test “Holter Systems”: Long-Term ECG Tape Recorder Systems. Utrecht: Institute of Medical Physics TNO, 1980.