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://polimery.ichp.vot.pl/index.php/p/article/view/993. Acesso em: 22 dec. 2024.