paragraph 64 in volume 1, chapter 5, Advisory Opinions
On 21 December 1946, ECOSOC adopted resolution 15 (III). In that resolution, considering that to enable it to discharge its coordinating responsibility under Chapter X, and more particularly under Article 63 of the Charter, it should be authorized to request advisory opinions ‘on all legal questions within its scope, including legal questions concerning mutual relations of the United Nations and Specialized Agencies’, it recommended …