Feldman, llana. 2008. Refusing Invisibility: Documentation and Memorialization in Palestinian Refugee Claims, Journal of Refugee Studies 21 (4): 4, page 503: "Anyone familiar with Palestinian visibility practices will certainly be aware of the importance of certain central objects within this field. Many refugees still have the keys to their houses in Palestine. Keeping these keys, and showing them to visitors and researchers, is part of a hope for return and a claim to these properties. Given this widespread practice, these keys, with their distinctive old-fashioned look, have also become symbols of refugee commitment to Palestine. At demonstrations in support of Palestinians one can often find people carrying enlarged replicas of these keys—in the process transforming individual objects into collective symbols."
Meital, Y.; Rayman, P. (2017). Recognition as Key for Reconciliation: Israel, Palestine, and Beyond. Social, Economic and Political Studies of the Middle East and Asia. Brill. ISBN978-90-04-35580-4. «Michal concedes the fact that Israelis do the same thing to the memory of the Nakba when saying "it was in 1948, enough talking about the past, let's talk about the future." When the Palestinians come with their keys [the Palestinian symbol of their lost homes], she says, "it's the same thing, it's a memory still burning in the hearts of families».
The Peninsula Newspaper (16 de mayo de 2016). «'Largest Key' dedicated to refugees around the world». The Peninsula Qatar. «The gigantic key, dedicated to all the refugees around the world, was unveiled in a spectacular show at the Katara Amphitheatre last night featuring Palestinian Arab Idol winner Mohammed Assaf. “This key symbol for all the refugees in the world. We want to set a Guinness World Record to say that it is the right of these refugees to return back home. Actually this is linked particularly to Palestinian refugees."... Around 4,000 people filled the Katara Amphitheatre to witness the unveiling of the enormous key and enjoy the concert highlighted by the performance of the young Palestinian singer who is the first United Nations Relief and Works Agency regional youth ambassador for Palestine refugees.»
