Article - ماده ۱۲۹ کنوانسیون ۱۹۸۲ حقوق دریاها / United Nations Convention on the Law of the Sea, 1982

Where there are no means of transport in transit States to give effect to the freedom of transit or where the existing means, including the port installations and equipment, are inadequate in any respect, the transit States and land-locked States concerned may cooperate in constructing or improving them.