(EN) Yager, K. G. e Barrett, C. J., 17, in Azobenzene Polymers as Photomechanical and Multifunctional Smart Materials, Cambridge, Royal Society of Chemistry, 2008, pp. 426–427, DOI:10.1039/9781847558008-00424, ISBN978-1-84755-800-8.
(EN) Yager, K. G. e Barrett, C. J., 17, in Azobenzene Polymers as Photomechanical and Multifunctional Smart Materials, Cambridge, Royal Society of Chemistry, 2008, pp. 426–427, DOI:10.1039/9781847558008-00424, ISBN978-1-84755-800-8.