European Centre for the Development of Vocational Training., Petersen, W. A., Revill, P., Ward, T., & Wehmeyer, C. (2005). ICT and e-business skills and training in Europe: Towards a comprehensive European e-skills reference framework : final synthesis report. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων.

European Centre for the Development of Vocational Training., Willi A. Petersen, Peter Revill, Tony Ward, and Carsten Wehmeyer. ICT and E-business Skills and Training in Europe: Towards a Comprehensive European E-skills Reference Framework : Final Synthesis Report. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 2005.

European Centre for the Development of Vocational Training., et al. ICT and E-business Skills and Training in Europe: Towards a Comprehensive European E-skills Reference Framework : Final Synthesis Report. Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 2005.