1. Petróleo Brasileiro S/A., Manual de Produtos de Petróleo, Petrobrás, Centro de Pesquisas e Desenvolvimento Leopoldo Miguel deMello (CENPES), Rio de Janeiro 1990.
2. ANP (Agência Nacional do Petróleo), avaiable at: http://www.anp.gov.br, accessed at June 13, 2004.
3. ASTM D86-99a, Standard Method for Distillation of Petroleum Products at Atmospheric Pressure; ASTM International, 1987.
4. A simple impedance method for determining ethanol and regular gasoline mixtures mass contents