G, H., K. K, J. G, S. R. S, and C. K. N S. “IOT Enabled Carbon Dioxide and Carbon Monoxide Monitoring and Control for Vehicles to Reduce Air Pollution”. Perspectives in Communication, Embedded-Systems and Signal-Processing - PiCES, vol. 1, no. 6, Oct. 2017, pp. 104-7, http://pices-journal.com/ojs/index.php/pices/article/view/35.