Implementing the internal energy market: annual report 2005 - European Commission (Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 2006)
Keywords: Energy policy -- European Union countries; Energy development Electric utilities -- Information storage and retrieval systems -- Electric utilities; Electric industries -- European Union countries