Law of Treaties - subsequent agreements and subsequent practice

The title of the dissertation: Law of Treaties - subsequent agreements and subsequent practice The topic of the dissertation is the codification of the rules of interpretation of international treaties, with special focus on the phenomenon of subsequent agreements and subsequent practice of the state parties. In its general introductory section, the thesis defines international treaties as a source of international law and presents a comprehensive analysis of methods of interpretation and their codification. The fundamental part is devoted to the subsequent agreements and subsequent practice, their definition, including the difference from other similar methods, and the use of them for the interpretation of treaties before international courts and in international organizations. This thesis also focuses on the issue of evolutionary interpretation. The practical part of the thesis is based on the interpretation of treaties in three branches of international law (investments, cultural cooperation, taxes), with emphasis on the use of subsequent agreements and subsequent practice and on the current developments in the negotiation of new treaties and in the activities of international organizations