Fredy you seem to have added interpretation which wasn't stated by Yossi Sarid. He said "agreed upon international authority." He did not say UN. Indeed the multi-national force in the Sinai is not run by the UN. The Iraq coalition was not run by the UN. NATO was the prime mover in Bosnia in the late 90s and there are more examples of international efforts not directly or indirectly run by the UN. So yes, things could be arranged as stated in this wise article. An international authority can be agreed upon by all parties to the conflict and solution. Actually, people like Sarid are good for Israel. And as always, let me say that I did serve in the IDF lest you think I say all this from the cool safety of Canada with no connection to Israel.
Labour's Corbyn sets up inquiry into anti-Semitism in the party, Guardian reports (Haaretz)
from the article: For Jerusalem, a response to Elie Wiesel