Wójcik W, Komada P, Cięszczyk S, Manak I, Golec T. Optoelectronic CO Concentration Analyser – Wavelength Selection. ELEKTRON ELEKTROTECH. 2004;50(1). Accessed January 23, 2026. https://eejournal.ktu.lt/index.php/elt/article/view/10996