D. Cañas, A. Orozco, L. García-Villalba, and T. Kim. FGIT-MulGraB (2), volume 263 of Communications in Computer and Information Science, page 300-304. Springer, (2011)
D. Cañas, A. Orozco, L. García-Villalba, and T. Kim. FGIT-MulGraB (2), volume 263 of Communications in Computer and Information Science, page 305-309. Springer, (2011)