European Commission. (1996). Council Regulation (EEC) No 4060/89 of 21 December 1989 on the elimination of controls performed at the frontiers of Member States in the field of road and inland waterway transport. Luxembourg: Office for Official Publications of the European Communities.

European Commission. Council Regulation (EEC) No 4060/89 of 21 December 1989 On the Elimination of Controls Performed At the Frontiers of Member States in the Field of Road and Inland Waterway Transport. Luxembourg: Office for Official Publications of the European Communities, 1996.

European Commission. Council Regulation (EEC) No 4060/89 of 21 December 1989 On the Elimination of Controls Performed At the Frontiers of Member States in the Field of Road and Inland Waterway Transport. Luxembourg: Office for Official Publications of the European Communities, 1996.