G. Meccariello and  L. Della Ragione,  Slope Effect in Emission Evaluation to Assess Real Pollutant Factors.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2014, vol. 94(10). 1176 - 1183
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/9999997.