FRANDSEN, G. S.; MILTERSEN, P. B.; SKYUM, S. Dynamic Word problems. DAIMI Report Series, [S. l.], v. 22, n. 438, 1993. DOI: 10.7146/dpb.v22i438.6755. Disponível em: https://tidsskrift.dk/daimipb/article/view/6755. Acesso em: 9 may. 2024.