1. BIPM, JCGM 200 (2012) http://www.bipm.org/en/publications/guides/vim.html . Accessed 16 Sept 2015
2. Blackburn WR (2007) The sustainability handbook: the complete management guide to achieving social, economic, and environmental responsibility. Environmental Law Institute, Washington, DC, ISBN 9781585761029
3. Brandi HS, de Souza TL (2009) Accred qual assur 14:567–573 and references therein
4. Brandi HS, Daroda RJ, Souza TL (2011) Standardization: an important tool in transforming biofuels into a commodity. Clean Technol Environ Policy 13:647–649
5. Cobb C, Schuster D, Beloff B, Tanzil D, Chin K (2015) Measuring sustainability – sustainability trends in the chemical industry, CEP