LISZKOWSKA, J.; CZUPRYŃSKI, B.; PACIOREK-SADOWSKA, J. Temperature stability and thermal properties of polyurethane-polyisocyanurate foams obtained using products of citric acid condensation. Polimery, [S. l.], v. 63, n. 7-8, p. 503-514, 2021. DOI: 10.14314/polimery.2018.7.4. Disponível em: http://ichp.vot.pl/index.php/p/article/view/230. Acesso em: 19 may. 2024.