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"On minimal forbidden subgraph characterizations of balanced graphs" (2013) Bonomo, F.; Durán, G.; Safe, M.D.; Wagler, A.K. Discrete Applied Mathematics. 161(13-14):1925-1942
"Minimum sum set coloring of trees and line graphs of trees" (2011) Bonomo, F.; Durn, G.; Marenco, J.; Valencia-Pabon, M. Discrete Applied Mathematics. 159(5):288-294