[1]
J. . Timmermann, W. . Heuten, and S. . Boll, “Input Methods for the Borg-RPE-Scale on Smartwatches”, EAI Endorsed Trans Energy Web, vol. 2, no. 6, p. e3, Aug. 2015, doi: 10.4108/icst.pervasivehealth.2015.259220.