1) رأت اللجنة أن من المفيد أن تضع في مقدمة دليل الممارسة "مذكرات إيضاحية" يراد بها تنوير مستعملي الدليل بشأن طريقة صياغته وبشأن أوجه استعماله الممكنة.
(11) It could perhaps be argued that, in accordance with article 20 of the Vienna Conventions, a reservation which is made by a State or an international organization and is not expressly provided for by the treaty is effective only for the parties which have accepted it, if only implicitly.