A Metaheuristic Solution to a Constrained Steiner Tree Problem. - Hugo Bravo-Azlán; Alfredo Candia-Véjar (SCCC, 1997)

Performance Analysis of Algorithms for the Steiner Problem in Directed Networks. - Alfredo Candia-Véjar; Hugo Bravo-Azlán (Electron. Notes Discret. Math., 2004)

Worst-case performance of Wong's Steiner tree heuristic. - Alfredo Candia-Véjar; Hugo Bravo-Azlán (Discret. Appl. Math., 2006)