Takes note of the statement of the Secretary- General in paragraph 25 of his report to the eflect that most of the space at the Vienna Intemational Centre available for the United Nations will be required by the organizational units already approved by the General Assembly for transfer from New York and Geneva to Vienna as well as by the larger units already at Vienna, and agrees with the statement of the Secretary-General that in case it becomes apparent at a later date that unused space is still available at the Centre he would bring the matter once again to the attention of the Assembly for its consideration;