3W. D. Sundet,K. L. Goetz. A window amplitude discriminator which reproduces the waveforms of accepted action potentials[J] 1981,Medical & Biological Engineering & Computing(1):23～27
4F. Johnson,J. T. Murphy. Pulse-height discriminator for a neurophysiology-computer interface[J] 1973,Medical & Biological Engineering(1):80～82
