Engler, R L Pacemaker spike alternans: an artifact of digital signal processing. [electronic resource] - Pacing and clinical electrophysiology : PACE Sep 1982 - 748-50 p. digital Publication Type: Journal Article ISSN: 0147-8389 Standard No.: 10.1111/j.1540-8159.1982.tb02312.x doi Subjects--Topical Terms: AgedArrhythmias, Cardiac--etiologyComputersDiagnosis, DifferentialElectrocardiography--instrumentationHumansMalePacemaker, Artificial