Marcin P. Pawlowski, Antonio J. Jara, and Maciej J. Ogorzalek. “Harvesting Entropy from On-Board Sensors of Constrained Devices for Hardening Security of IoT Communication Mechanisms”. Research Briefs on Information and Communication Technology Evolution, vol. 1, Jan. 2015, pp. 21-34, doi:10.56801/rebicte.v1i.4.