SHIMEI, Ferdinand; T. C., Chineke; O. K, Nwofor; B. B., Ewurum. Monitoring Pollutant Emission with QC Laser Based Mid IR Sensors. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 24, n. 4, p. 401–414, 2015. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/4479. Acesso em: 21 jan. 2026.