Ziani, Said, Mohamed El Ghmary, and Achmad Rizal. “Integration of Time-Frequency Analysis and Regularization Technique for Improved Identification of Fetal Electrocardiogram ”. International Journal of Online and Biomedical Engineering (iJOE) 19, no. 17 (December 15, 2023): pp. 170–177. Accessed November 21, 2024. https://online-journals.org/index.php/i-joe/article/view/42141.