R. Kovacevic, "Rapid Prototyping Technique Based on 3D Welding" (Abbreviated version) R. Kovacevic, "Rapid Prototyping Technique Based on 3D Welding" (Full version) R. Kovacevic, "Controlled Heat and Metal Transfer in Gas Metal Arc Welding - Base for New Rapid Prototyping Technique" (Full version)