Eleftherios P. Diamandis , Toronto, Canada

David Deperthes , Lausanne, Switzerland

M. Plebani, Padova, Italy

Georges M. Yousef, St. Johns, Canada

Jair R. Chagas, Saõ Paulo, Brasil

R.R. Tremblay, Quebec City, Canada

Georgia Sotiropoulou, Patras, Greece

Judith Clements, Brisbane, Australia