6 McMaster, R. and Ribeiro, A. F., “Cell Calibration and Robot Tracking”, IEE Colloquium 'Next Steps for Industrial Robotics', Professional Group C15, 3/1-3/7, London, 17th May 1994.
7 Ribeiro, A. F. and Norrish, J.,”Metal Based Rapid Prototyping for More Complex Shapes”, 6th Biennial International Conference on 'Computer Technology in Welding' - Lanaken, Belgium, 9-12 June 1996. [OpenAIRE]
8 Ribeiro, A. F. and Norrish, J.,”Case Study of Rapid Prototyping using Robot Welding - 'Square to Round' shape”, 27th International Symposium on Industrial Robotics, Milan, Italy, 6-8 October 1996. [OpenAIRE]