University of California - Berkley - USA

Shanghai Jiao Tong University - CHINA

Universidad Nacional del Comahue - ARGENTINA

Institute of Chemical Technology, Prague - CZECH REPUBLIC

Academy of Sciences of the Czech Republic - CZECH REPUBLIC

University of Edinburgh,  Edinburgh - UNITED KINGDOM

Katholieke Universiteit Leuven - BELGIUM

University of West Macedonia - GREECE

Illinois Institute of Technology - USA

Institute of Chem. Eng. and High Temperature Chemical Processes - GREECE

Princeton University - USA

University of Cape Town – SOUTH AFRICA

Ghent University - BELGIUM

University of Wisconsin-Madison - USA

SUNNY – Buffalo, New York - USA

University of Leeds - UNITED  KINGDOM

Slovak University of Technology - SLOVAKIA

Industrial Catalysis CPT-TU Delft – NETHERLANDS

National Institute of Chemistry - SLOVENIA

Technische Universitaet Dresden - GERMANY

Ruhr-Universitat Bochum - GERMANY

Industrial Technologies at Puchov  - SLOVAKIA

Prague Institute of Chemical Technology – CZECH REPUBLIC

Wageningen Agricultural Univ - NETHERLANDS

Northwestern University – USA

Universidad Nacional de La Plata – ARGENTINA

University of Houston – USA

Universidad Iberoamericana - MEXICO

Technical University of Denmark – DENMARK

Worcester Polytechnic Institute – USA