Effect of the O2/CO2 ratio and welding current on the geometry of square groove weld joints in low carbon steels obtained with GMAW. - Díaz-Cedré, Eduardo; Cruz-Crespo, Amado; Ramos Morales, Félix; Tello Rico, Mauricio; Chaparro Gonzáles, Joel; Rodríguez Pérez, Manuel; Pozo Morejón, Juan A.; Quintana Puchol, Rafael; Pérez Pino, Nancy M. (Welding International, 2010)