Professor, Universitas Pendidikan Indonesia

Organisational Sustainability

Wageningen University, Norwegian University of Life Sciences

Professor of Higher Education Development, University of Vechta

Professor of Environmental Chemistry, National and Kapodistrian University of Athens

Professor in Curriculum studies, Uppsala university

Associate Professor, Open Universiteit, the Netherlands

Utrecht University

Leuphana University of Lüneburg, School of Sustainability

Didaktik der Biologie, Universität Göttingen