OPREA, S. Synthesis and properties of new polyurethane elastomers: influence of hard segment structure. Polimery, [S. l.], v. 55, n. 2, p. 111-117, 2020. Disponível em: https://ichp.vot.pl/index.php/p/article/view/993. Acesso em: 30 apr. 2024.