Bakogiannis, E., C. Kyriakidis, and T. Milioni. “The Struggle for Integration of Refugees and Immigrants: Examples of Integration of Refugees in European Cities and the Case Study of Athens”. European Journal of Formal Sciences and Engineering, vol. 5, no. 1, Sept. 2022, pp. 80-89, doi:10.26417/ejef.v3i1.p18-27.