KLARLUND, Nils; SCHWARTZBACH, Michael I. Graph Types. DAIMI Report Series, [S. l.], v. 21, n. 421, 1992. DOI: 10.7146/dpb.v21i421.7952. Disponível em: https://tidsskrift.dk/daimipb/article/view/7952. Acesso em: 7 dec. 2025.