国際連合安全保障理事会決議505
3. Urges the parties to the conflict to cooperate fully with the Secretary General in his mission with a view to ending the present hostilities in and around the Falkland Islands (Islas Malvinas);
4. Requests the Secretary General to enter into contact immediately with the parties with a view to negotiating mutually acceptable terms for a ceasefire, including, if necessary, arrangements for the dispatch of United Nations observers to monitor compliance with the terms of the ceasefire;