Kairytė, Agnė, Saulius Vaitkus, and Giedrius Balčiūnas. 2016. “The Impact of Chain Extender on the Properties of Polyurethane Foam Based on Rapeseed Oil Polyol Obtained via chemo–enzymatic Route”. Engineering Structures and Technologies 8 (3):101-7. https://doi.org/10.3846/2029882X.2016.1209726.