75) The Law of International Waterways in its Institutional Aspects, Festschrift für Dietrich Schindler, Basilea, Helbing &amp; Lichtenhahn, 1989, págs. 21 a 45.
75) The Law of International Waterways in Its Institutional Aspects, Festschrift fьr Dietrich Schindler, Bвle, Helbing &amp; Lichtenhahn, 1989, pp. 21 - 45.