1. J. Rifkin, The Hydrogen Economy – The Creation of the Worldwide Energy Web and the Redistribution of Power on Earth, Jeremy P. Tarcher, Penguin, New York, USA, 2003.
2. S.P. Oliveira, A.C. Rocha, P.R.G. Couto, J.T. Filho, Estimation of uncertainty of measurement in the evaluation of the efficiency of the fuel cells under the recommendations of the ISO GUM 95 and method of simulation Monte-Carlo, in: Proceedings – V Latin American Congress of Metrology Metrosul V, single volume, Rede Paranaense de Metrologia e Ensaios, Curitiba, Brazil, September 2007, pp. 37–38.
3. Standard ISO IEC 17025, General Requirements for the Competence of Testing and Calibration Laboratories, 2005.
4. P.R.G. Couto, Estimativa da Incerteza da Massa Especı´fica da Gasolina pelo ISO GUM 95 e Método de Monte Carlo e seu Impacto na Transferência de Custódia, M.Sc. Dissertation, Escola de Quı´mica/UFRJ, Rio de Janeiro, Brazil, 2006.
5. ISO GUM 95 with minor corrections, JCGM 100:2008 – Evaluation of Measurement Data – Guide to the Expression of Uncertainty in Measurement BIPM, IEC, IFCC, ILAC, ISO, IUPAC, IUPAP and OIML, first ed., Sèvres, France, 2008.