THE UNIVERSAL THEORY OF A FREE NILPOTENT GROUP: A PROGRESS REPORT. Far East Journal of Mathematical Sciences (FJMS), [S. l.], v. 140, n. 4, p. 275–290, 2023. DOI: 10.17654/0972087123016. Disponível em: https://pphmjopenaccess.com/fejms/article/view/1013. Acesso em: 5 jan. 2026.