Lean Construction Institute

Industrial Engineering Department, Baskent University, Ankara, Turkey

Professor of International Business, University of Essex, Essex Business School

The Hong Kong Polytechnic University

Karlsruhe Institute of Technology (KIT), Institute for Industrial Production (IIP)

Federal University of Rio Grande do Sul

Full professor Production and Supply Chain Management

National Taiwan University of Science and Technology

Professor of Management Science, Otto-von-Guericke University Magdeburg

Professor for Production Management, University of St.Gallen