Łysko, J. et al. 2016. APPROPRIATE CALIBRATION INTERVALS OF LABORATORY TEST EQUIPMENT IN ACCORDANCE WITH THE INTERNATIONAL IECEE REGULATIONS AND ITE PREDOM DIVISION ACTIVITY. Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska. 6, 3 (Aug. 2016), 16–19. DOI:https://doi.org/10.5604/20830157.1212259.