PETRUŠKEVIČIŪTĖ, D. About one class families of space curves order three. Lithuanian Mathematical Journal, [S. l.], v. 8, n. 4, p. 803–810, 1968. DOI: 10.15388/LMJ.1968.20612. Disponível em: https://www.journals.vu.lt/LMJ/article/view/20612.. Acesso em: 29 apr. 2024.