Kania, B. and Sikora, J. 2014. CIRCUITS OF THERMIONIC EMISSION CURRENT AUTOMATIC CONTROL IN VACUUM MEASUREMENT INSTRUMENTS. Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska. 4, 3 (Sep. 2014), 36–38. DOI:https://doi.org/10.5604/20830157.1121344.