1. World Congress on Industrial Process Tomography, Buxton, UK (1999); Hannover, Germany (2001); Banff, Canada (2003)
2. Proc. of 1st European Concerted Action on Process Tomography (ECAPT) Workshop, Manchester, UK (1992)
3. Proc. of 2nd European Concerted Action on Process Tomography Workshop, Karlsruhe, Germany (1993)
4. Proc. of 3rd European Concerted Action on Process Tomography Workshop, Oporto, Portugal, 24-26March (1994)
5. Proc. of 4th European Concerted Action on Process Tomography Workshop, Bergen, Norway, 6-8April (1995)