Loos, R., & European Centre for the Development of Vocational Training. (2000). Vocational training and innovative practices in the environmental sector: A comparison of ten EU Member States, with specimen cases : synthesis report in the context of the 'Observing innovations in vocational training' project. Luxembourg: Office for Official Publications of the European Communities.

Loos, Roland., and European Centre for the Development of Vocational Training. Vocational Training and Innovative Practices in the Environmental Sector: A Comparison of Ten EU Member States, With Specimen Cases : Synthesis Report in the Context of the 'Observing Innovations in Vocational Training' Project. Luxembourg: Office for Official Publications of the European Communities, 2000.

Loos, Roland., and European Centre for the Development of Vocational Training. Vocational Training and Innovative Practices in the Environmental Sector: A Comparison of Ten EU Member States, With Specimen Cases : Synthesis Report in the Context of the 'Observing Innovations in Vocational Training' Project. Luxembourg: Office for Official Publications of the European Communities, 2000.