Gaetano has published widely in the field, especially on human rights issues relating to minority groups, including indigenous peoples, and broader questions of public international law (particularly customary international law-making).
He is the author of leading texts including La rilevanza dell’obiezione persistente nel diritto internazionale (1996), Defining ‘Minority’ in International Law: A Critical Appraisal (2000), Minorities in International Law (2002) - also translated into French (2004) and Serbian (2004) - and Minority Groups and Judicial Discourse in International Law (2009). He also served as Editor of 'Reforming the UN Human Rights Machinery: What Does the Future Hold for the Protection of Minorities and Indigenous Peoples?’, 15:2-3 International Journal on Minority and Group Rights (2007).
He has acted as an expert consultant or contributor to several international and non-governmental institutions, such as Minority Rights Group International, the Raoul Wallenberg Institute of Human Rights and Humanitarian Law at Lund University, the Open Society Foundation, and the Tom Lantos Institute in Budapest, and he is a former member of the International Law Association Committee on the Rights of Indigenous Peoples.
Gaetano regularly contributes opinion pieces for leading media outlets and think tanks such as The Conversation (http://theconversation.com/uk), ResetDoc (www.resetdoc.org) and ResetDirittiUmani (http://festivaldirittiumani.it/blog/, in collaboration with Il Corriere della Sera, Rainews 24, ResetDoc and Radio Popolare).
He is currently involved in a number of country or thematic projects, including on Turkey, indigenous rights, and group identities. Gaetano has finalised an edited collection on Ethno-Cultural Diversity and Human Rights: Challenges and Critique (Martinus Nijhoff Publishers), and has several articles in print. Gaetano's work has been supported through several funding streams over the years, from prestigious funded fellowships to University of Liverpool competitive grants, including Research Development Fund, Santander and Erasmus + funding.