zabezpečená klávesnice, foto Triboelectric Generators and Sensors for Self-Powered Wearable Electronics, Minjeong Ha, Jonghwa Park, Youngoh Lee, and Hyunhyub Ko, ACS Nano, 2015, 9 (1), pp 105–116, DOI: 10.1021/nn506832w

zabezpečená klávesnice, foto Triboelectric Generators and Sensors for Self-Powered Wearable Electronics, Minjeong Ha, Jonghwa Park, Youngoh Lee, and Hyunhyub Ko, ACS Nano, 2015, 9 (1), pp 105–116, DOI: 10.1021/nn506832w