B. T. KRISHNA. An Approach of QRS Detection Using Fractional Order Digital Differentiators . Highlights on Medicine and Medical Science Vol. 16, [S. l.], p. 156–162, 2021. DOI: 10.9734/bpi/hmms/v16/3189F. Disponível em: https://stm.bookpi.org/HMMS-V16/article/view/2400. Acesso em: 22 jul. 2026.