Gersch, W A note on trapezoidal digital filter design. [electronic resource] - Computers and biomedical research, an international journal Jun 1973 - 281-5 p. digital Publication Type: Journal Article ISSN: 0010-4809 Standard No.: 10.1016/0010-4809(73)90042-6 doi Subjects--Topical Terms: Arrhythmias, Cardiac--diagnosisComputersElectrocardiographyFiltrationHumansPhysical PhenomenaPhysics