PETERSEN, Kirsten Elisa; LADEFOGED, Lars. Youth in Gangs. What Do We Know – and What Don’t We Know? A Research Review of National and International Knowledge about Youth in Gangs. Aarhus, DK: AU Library Scholarly Publishing Services,2018. Disponível em: https://ebooks.au.dk/aul/catalog/book/284. Acesso em: 16 aug. 2025.