Whilst the Vienna Convention on the Law of Treaties is not retroactive, articles 19-22, which deal with the making of reservations and the effects thereof, are generally accepted as the starting point in any discussion.
6. 由于《维也纳条约法公约》不追溯既往，所以关于保留和保留影响的第十九条至第二十二条一般被认为是任何讨论的出发点。