P. R. Matos,  "Revisiting (in)formality: wageless livelihoods and the production of needs in austerity Portugal", in INTERNATIONAL CONFERENCE The Informal and the Formal in Times of Crisis: Ethnographic Insights Int. Urban Symp. – IUS; Commission on Urban Anthropology (CUA); the University of Peloponnese (Corinth, Grécia), 2017