Dell’Antonia, D., R. Gubiani, D. Maroncelli, and G. Pergher. “GASEOUS EMISSIONS FROM FOSSIL FUELS AND BIOMASS COMBUSTION IN SMALL HEATING APPLIANCES”. Journal of Agricultural Engineering, vol. 41, no. 4, June 2012, pp. 37-46, doi:10.4081/jae.2010.4.37.