ILMAN, V. M.; SKALOZUB, V. V.; SHYNKARENKO, V. I. FORMING SYSTEMS OF GRAPHS. Science and Transport Progress , [S. l.], n. 17, p. 127–133, 2007. DOI: 10.15802/stp2007/17596. Disponível em: https://stp.ust.edu.ua/article/view/17596. Acesso em: 3 may. 2024.