Opinion of mr advocate-general Dutheillet de Lamothe delivered on 1 July 1971

1 Translated from the French.

2 Cf. on this point: Revue de la navigation intérieure et rhénane, 1957, page 147; Centre pour l'étude scientifique des transports de Rotterdam: Le regime relatif à la navigation de la Moselle, etude collective. 1960; Scholtens, in the Netherlands Periodical Verkeer No. 4, 1960, pp. 200-215.