No doubt the 1986 Vienna Convention was concerned with international organizations in general and nevertheless still referred to intergovernmental organizations; however, that Convention implied a substantial restriction because it considered only those organizations possessing a treaty-making power.
Certes, la Convention de Vienne de 1986 concernait les organisations internationales en général et visait néanmoins les organisations intergouvernementales, mais elle impliquait une restriction substantielle, car elle ne concernait que les organisations ayant compétence pour conclure des traités.