Eng, Helene, and June Thorvaldsen Forsberg. 2026. “Systematic Review and Classification Of: Circle of Security International - Intervention (COS-I)ention (COS-I, 2. Utg.)”. Ungsinn. Journal of Effective Interventions for Children and Adolescents 18 (2). https://doi.org/10.7557/hy9yjz61.