Wronowska G, Rosiek J. SOCIAL CONVERGENCE IN THE EU-28 COUNTRIES IN THE LIGHT OF THE IMPLEMENTATION OF THE EUROPE 2020 STRATEGY. THE DEA APPROACH. aspe [Internet]. 2019 Sep. 30 [cited 2024 Nov. 22];18(3):111-9. Available from: https://aspe.sggw.edu.pl/article/view/201