Lechowicz, J. “Gelation in the Non-Stoichiometric Step Growth Polymerization of Two- and Three-Functional Monomers”. Polimery 55, no. 7-8 (August 30, 2010): 594-596. Accessed April 29, 2024. http://ichp.vot.pl/index.php/p/article/view/1046.