An Introduction to the euPOLIS Project. - Charalampos Zafeiropoulos; Matthaios Bimpas; Eftychios Protopapadakis; Emmanuel Sardis; Nikolaos Doulamis; Anastasios D. Doulamis; Cedo Maksimovic; Stanislava Boskovic; Ranko Bozovic; Maja Lalic (NiDS, 2021)