Graphs that Are Not Pairwise Compatible: A New Proof Technique (Extended Abstract). - Pierluigi Baiocchi; Tiziana Calamoneri; Angelo Monti; Rossella Petreschi (IWOCA, 2018)

Some classes of graphs that are not PCGs. - Pierluigi Baiocchi; Tiziana Calamoneri; Angelo Monti; Rossella Petreschi (Theor. Comput. Sci., 2019)