Council Regulation (EEC) No 2830/77 of 12 December 1977 on the measures necessary to achieve comparability between the accounting systems and annual accounts of railway undertakings: 11 languanges - European Commission (Λουξεμβούργο: Υπηρεσία Επισήμων Εκδόσεων των Ευρωπαϊκών Κοινοτήτων, 1997)
Keywords: Railway transport -- European Union; Accounting -- European Union countries