Brouwer, Andries E. «The Petersen graph». Technische Universiteit Eindhoven, Faculteit Wiskunde en Informatica.
uchicago.edu
people.cs.uchicago.edu
Babai, László. «Automorphism groups, isomorphism, reconstruction, Corollary 1.8». A: Ronald L. Graham, Martin Grötsche, László Lovász. Handbook of Combinatorics. I. North-Holland, 1995, p. 1447–1540.
uwa.edu.au
staffhome.ecm.uwa.edu.au
Royle, G. «Cubic Symmetric Graphs (The Foster Census)». Faculty of Engineering, Computing and Mathematics; The University of Western Australia, 01-02-2001. Arxivat de l'original el 2015-09-12. [Consulta: 22 juny 2016].
web.archive.org
Royle, G. «Cubic Symmetric Graphs (The Foster Census)». Faculty of Engineering, Computing and Mathematics; The University of Western Australia, 01-02-2001. Arxivat de l'original el 2015-09-12. [Consulta: 22 juny 2016].