- M. El Shaer, M. Wüttmann, " Effect of hydrogen plasma on chlorides contents in corroded copper samples" The Second International Conference on Ancient Mining and Metallurgy and Conservation of Metals, Cairo, Egypt, 14-16 April 1998.

- M. El Shaer, M. Wüttmann, "Effect of Hydrogen plasma on Chloride content in corroded copper samples" International Conference on Metals conservation, Draguignan , France,. Published on Metal 98, James & James (Science Publishers) Ltd. 26-29 May 1998

- M. El Shaer, M. Mobasher, M. Wüttmann, "RF hydrogen plasma discharge used for chlorides removal from corroded copper samples", XXIII International Conference on Phenomena in Ionized Gases, Toulouse, France, 17-22 July 1997

- M. El Shaer, M. Mobasher, M. Masoud "Electron Temperature Measurements in a Helium RF Discharge", Fourth Workshop on Plasma and Laser physics, Cairo, Feb. 1996.