1. Bibliographical Note
2. Some authors argue to substitute the attribution requirement with a "sufficient external link", see C. Stahn, Terrorist Acts as;Fletcher F. Wld. Aff,2003
3. Steenberghe wants to establish this link within the requirement of "necessity". Others interpret the ICJ's ruling as requiring only an attribution of the non-state actor attack to the state, if the state itself is the target, not if only the non-state actor is attacked;R V Cf;Self-Defense against Non-State Actors: recent State Practice, 23 Leiden J. Int'l L,0207