Furthermore, it should be taken into account that all international treaties are governed by the customary rules of the law of treaty, many of which have been reproduced in the 1969 Vienna Convention on the Law of Treaties.
另外应该考虑到，所有国际条约都须遵守条约法的习惯规则，这些规则许多已经写在《维也纳条约法公约》里。