ZARZYKA-NIEMIEC, I. Synthesis and application of oligomers obtained from oxamic acid and ethylene carbonate. Polimery, [S. l.], v. 54, n. 2, p. 106–113, 2009. Disponível em: https://polimery.ichp.vot.pl/index.php/p/article/view/1180. Acesso em: 16 apr. 2025.