MAHDI, I. F.; AZZAWI, M. M.; MOHAMMED, F. S. Development of NDIR CO2 Gas Sensing System Based on U-Shaped Optical Cavity. Al-Mustansiriyah Journal of Science, [S. l.], v. 33, n. 4, p. 136–140, 2022. DOI: 10.23851/mjs.v33i4.1184. Disponível em: https://mjs.uomustansiriyah.edu.iq/index.php/MJS/article/view/1184. Acesso em: 1 oct. 2023.