Lower bounds for the domination number and the total domination number of direct product graphs. - Gasper Mekis (Discret. Math., 2010)

On Idomatic Partitions of Direct Products of Complete Graphs. - Sandi Klavzar; Gasper Mekis (Graphs Comb., 2011)

On the rainbow connection of Cartesian products and their subgraphs. - Sandi Klavzar; Gasper Mekis (Discuss. Math. Graph Theory, 2012)

Rainbow Connection and Graph Products. - Tanja Gologranc; Gasper Mekis; Iztok Peterin (Graphs Comb., 2014)