properly implemented. 20. The Secretary-General of the United Nations, after consulting the Security Council, will appoint a United Nations observer group to be stationed in Western Sahara. The Observer Group will be established and will function in accordance with the general principles applicable to United Nations peace-keeping operations. The Group will be large enough and its composition sufficiently broad for it to be able to perform the functions envisaged in the present proposals. The Group will be responsible for supervising the cessation of hostilities, the application of the cease-fire, the provision of supplies to the troops of the parties to the conflict and the exchange of prisoners. The Observer Group will also be responsible for ascertaining the respective positions of the forces of the two parties at the moment when the cease-fire takes effect. The exchange of prisoners will take place under the supervision of the Observer Group no later than . . . days after the cease-fire begins. 21. Morocco and the Frente POLISARIO undertake to co-operate fully with the Observer Group and to abide by and observe scrupulously the above cease-fire provisions. 22. Algeria and Mauritania also undertake to co-operate fully with the Observer Group and to abide by and observe scrupulously the above cease-fire provisions. S/21360 English Page 9 v. REFERENDUM 23. In conformity with OAU resolution AHG/Res. 104 (XIX) and General Assembly resolutions 1514 (XV) and 40150, a referendum will be organised in Western Sahara to enable the people of the Territory to decide their own future freely and democratically. The referendum will be organized and conducted by the United Nations, in co-operation with OAU, during a transitional period. A. Census of the Saharan population 24. All Saharans counted in the 1974 census taken by the Spanish authorities and 
**Analysis**
This text appears to be related to a peacekeeping operation and a referendum in Western Sahara, which suggests a focus on international relations and conflict resolution. The text does not mention any specific economic, environmental, or social issues that would fall under categories such as Economic development, Natural resources and environment, or Health.

**Category**
Humanitarian aid and relief, International relations