Two-fold automorphisms of graphs. - Josef Lauri; Russell Mizzi; Raffaele Scapellato (Australas. J Comb., 2011)

Unstable graphs: A fresh outlook via TF-automorphisms. - Josef Lauri; Russell Mizzi; Raffaele Scapellato (Ars Math. Contemp., 2015)

The construction of a smallest unstable asymmetric graph and a family of unstable asymmetric graphs with an arbitrarily high index of instability. - Josef Lauri; Russell Mizzi; Raffaele Scapellato (Discret. Appl. Math., 2019)