Dubman it’s published by a pro-Palestine sub-committee of the UN. The article is only listed on the website of the sub-committee. I’m not sure it means too much beyond the fact that it’s only an article released by the sub-committee and hasn’t been discussed or necessarily entirely endorsed by the main body of the UN itself.
“In 1975, by its resolution 3376, the UN General Assembly established the Committee on the Exercise of the Inalienable Rights of the Palestinian People (CEIRPP), and requested it to recommend a programme of implementation to enable the Palestinian people to exercise their inalienable rights to self-determination without external interference, national independence and sovereignty; and to return to their homes and property from which they had been displaced. The Committee’s recommendations were endorsed by the General Assembly, to which the Committee reports annually. The Assembly established the Division for Palestinian Rights as its secretariat and, throughout the years, has gradually expanded the Committee’s mandate.”
"UNISPAL – UN Information System on the Question of Palestine
https://www.un.org/unispal/data-collection/
The United Nations Information System on the Question of Palestine (UNISPAL) was established and is being developed by the Division for Palestinian Rights in response to successive General Assembly mandates. The main collection contains the texts of current and historical United Nations material concerning the question of Palestine and other issues related to the Middle East situation and the search for peace."