16.VAN DER POL B, VAN DER MARK J. LXXII. The heartbeat considered as a relaxation oscillation, and an electrical model of the heart[J]. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1928, 6(38): 763-775. DOI:10.1080/14786441108564652. | 16.VAN DER POL B, VAN DER MARK J. LXXII. The heartbeat considered as a relaxation oscillation, and an electrical model of the heart[J]. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1928, 6(38): 763-775. DOI:10.1080/14786441108564652. |