RT Book, Section SR Electronic(1) A1 United Nations YR 2018 T1 Reservations to treaties T2 Yearbook of the International Law Commission 2011, Vol. II, Part 2 PB United Nations SN 9789210577168 DO 10.18356/4c0d9c97-en UL https://www.un-ilibrary.org/content/books/9789210577168s001-c011