1. P. T. Anastas and J. C.Warner , Green Chemistry: Theory and Practice , Oxford University Press , Oxford , 1998 ; ISBN: 0-19-850234-6.A
2. http://www.acs.org/content/acs/en/greenchemistry/industry-business/pharmaceutical.html
3. http://www.imi.europa.eu
4. http://www.chem21.eu
5. http://www.efpia.eu