1. Proc. 9th Int. Congr. Met. Corros.;Schmitt,1984
2. Proc. 3rd Iberoamerican Congr. Corrosion and Protection;Granese,1989
3. Proc. 10th Int. Congr. Met. Corrosion;Granese,1987
4. Quimindustria '88;Granese,1988
5. Proc. 6th European Symp. Corrosion Inhibitors;Granese,1985