Jiri Marsalek  
National Water Research Institute 
867 Lakeshore Road 
Burlington, Ontario L7R 4A6 
Canada 
Tel + 1 905 336 4899 
Fax + 1 905 336 4420 
Email: jiri.marsalek@cciw.ca

David Stephenson
Water Engineering
University of Botswana
Kgale View Postnet 483, PBag 351
Gaborone, 
Botswana
Tel + 267 71396301
Email: stephenson@mopipi.ub.bw 

Christos Makropoulos
Dept. of Water Resources and Env. Engineering
School of Civil Engineering
National Technical University of Athens
5, Iroon Polytechniou Str, 
Athens, Greece
Tel.: +30-210-772-2886
Email: cmakro@mail.ntua.gr