1. Brazilian Association of Technical Standards (ABNT) ( 1995 ) Light Duty Road Vehicles-Determination of Hydrocarbons , Carbon Monoxide, Oxides of Nitrogen, and Carbon Dioxide in the Exhaust Gas. NBR6601 , in Portuguese .
2. Brazilian Association of Technical Standards (ABNT) ( 1997 ) Light Duty Road Vehicles-Determination of Aldehyde and Ketone Emissions in the Exhaust Gas by Liquid Chromatography-DNPH Method . NBR12026, in Portuguese .
3. Formation and Control of Aldehydes in Alcohol Fueled Engines
4. Browning , L.H. Pefley, R.K. ( 1977a ) Computer Predicted Compression Ratio Effects on NO Emissions from a Methanol Fueled S.l. Engine . SAE paper 779006 .