European Commission. (1997). Commission regulation (EEC) no. 281/71 of 9 February 1971 determining the composition of the list of waterways of a maritime character provided for in article 3 (e) of Council regulation (EEC) no. 1108/70 of 4 June 1970: 11 languages. Luxembourg: Office for Official Publications of the European Communities.

European Commission. Commission Regulation (EEC) No. 281/71 of 9 February 1971 Determining the Composition of the List of Waterways of a Maritime Character Provided for in Article 3 (e) of Council Regulation (EEC) No. 1108/70 of 4 June 1970: 11 Languages. Luxembourg: Office for Official Publications of the European Communities, 1997.

European Commission. Commission Regulation (EEC) No. 281/71 of 9 February 1971 Determining the Composition of the List of Waterways of a Maritime Character Provided for in Article 3 (e) of Council Regulation (EEC) No. 1108/70 of 4 June 1970: 11 Languages. Luxembourg: Office for Official Publications of the European Communities, 1997.