ŻMIHORSKA-GOTFRYD, A. Phenol-formaldehyde resols modified by boric acid. Polimery, [S. l.], v. 51, n. 5, p. 386–388, 2022. Disponível em: https://ichp.vot.pl/index.php/p/article/view/1537. Acesso em: 29 apr. 2025.