WARZEC, Anna; MARSZALEC, Michał; LUSAWA, Marzenna. Verification of Staff Proficiency in the Calibration Laboratory on Voltage, Frequency, Resistance and Capacity Measurements. Journal of Telecommunications and Information Technology, Warsaw, Poland, v. 66, n. 4, p. 94–101, 2016. DOI: 10.26636/jtit.2016.4.767. Disponível em: https://jtit.pl/jtit/article/view/767. Acesso em: 13 jun. 2026.