Sellin, B., & European Environment Agency. (2002). Scenarios and strategies for vocational education and lifelong learning in Europe: Summary of findings and conclusions of the joint Cedefop/ETF project (1998-2002). Luxembourg: Office for Official Publications of the European Communities.

Sellin, Burkart., and European Environment Agency. Scenarios and Strategies for Vocational Education and Lifelong Learning in Europe: Summary of Findings and Conclusions of the Joint Cedefop/ETF Project (1998-2002). Luxembourg: Office for Official Publications of the European Communities, 2002.

Sellin, Burkart., and European Environment Agency. Scenarios and Strategies for Vocational Education and Lifelong Learning in Europe: Summary of Findings and Conclusions of the Joint Cedefop/ETF Project (1998-2002). Luxembourg: Office for Official Publications of the European Communities, 2002.