He particularly welcomed conclusions (31) to (42) on the issue of hierarchy in international law, jus cogens, obligations erga omnes and Article 103 of the Charter of the United Nations.
他特别欢迎关于国际法分级问题、强制法、普遍适用的义务和《联合国宪章》第一百零三条的结论（31）至（42）。