Firlik, S., et al. “Synthesis of Photosensitive poly(amide-Ester-Imide) Coatings Containing Cinnamate Groups and the Modification of Their Surface Properties With UV Radiation”. Polimery, vol. 55, no. 9, Sept. 2010, pp. 655-9, https://ichp.vot.pl/index.php/p/article/view/1051.