Stability of graphs. Demir, Bünyamin; Deniz, Ali; Koçak, Sahin — 2009 The Electronic Journal of Combinatorics [electronic only]
Wallpaper Patterns with Self-Similar and Graph-Directed Fractal Lattice Units Ali Deniz; Sahin Kocak; Ynuns Ozdemir; A. Ersin Ureyen — 2011 Visual Mathematics