Pukin-Sowul P, Markowski L. Analysis of the Similarity of the Macroeconomic Situation and the Level of Investment in the European Union in 2018-2020 in the Context of the Covid-19. oej [Internet]. 2022 Sep. 30 [cited 2024 May 19];17(1):115-26. Available from: https://czasopisma.uwm.edu.pl/index.php/oej/article/view/8551