Graph functionality and symmetric difference
1 : Université d'Orléans
INSA Centre Val de Loire, Laboratoire d'Informatique Fondamentale d'Orléans
2 : Department of Mathematics, University of Warwick
3 : FAMNIT and IAM, University of Primorska
4 : Faculty of Information Studies, Novo Mesto
5 : Department of Computer Science, University of Liverpool