Manikandan, M. Sabarimalai; Ramkumar, Barathram: 'Straightforward and robust QRS detection algorithm for wearable cardiac monitor', Healthcare Technology Letters, 2014, 1, (1), p. 40-44, DOI: 10.1049/htl.2013.0019
IET Digital Library, https://digital-library.theiet.org/;jsessionid=pq6jilfuly0.x-iet-live-01content/journals/10.1049/htl.2013.0019