Ukielski, R., and M. Piątek. “The Effect of Polyamide PA12 and Polyester PBT blocks’ Lengths on the Structure and Propertries of Multiblock terpoly(amide-Block-Ester-Block-Amide) (TPAEA)”. Polimery, vol. 52, no. 11-12, Aug. 2022, pp. 848-54, https://polimery.ichp.vot.pl/index.php/p/article/view/1480.