Pietrasik, K., O. Świątkowska, and A. Kaim. 2010. “New Difunctional Mediators Based on 4-Amino-TEMPO Derivatives for Controlling Free Radical Polymerization of Styrene”. Polimery 55 (11-12):812-16. https://ichp.vot.pl/index.php/p/article/view/1068.