GAFFOROV, R.A.; KERBAL, S.; JURABOYEV, S.S. On the Equivalence of Elementary Surfaces with Respect to the Motion Group of Pseudo-Euclidean Space. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 121, n. 1, p. 132–139, 2026. DOI: 10.31489/2026m1/132-139. Disponível em: https://mts.buketov.edu.kz/mathematics-vestnik/article/view/891. Acesso em: 4 apr. 2026.