Xie, F. and Zemlin, C. (2014) “Filter Design for Optically Recorded Cardiac Electrical Activity Recorded During Ischemia”, International Journal of Sciences: Basic and Applied Research (IJSBAR), 15(2), pp. 310–320. Available at: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/3013 (Accessed: 6 October 2025).