В’юницький, Олег, and Олександр Тоцький. “WAVELET-BISPECTRUM METHOD FOR DETERMINING QRS COMPLEX POSITIONS IN ECG SIGNALS”. SWorldJournal 2, no. 33-02 (September 30, 2025): 176–191. Accessed February 8, 2026. https://sworldjournal.com/index.php/swj/article/view/swj33-02-076.