OLEJNIK, Alicja. An Empirical Study Of Productivity Growth In EU28 - Spatial Panel Analysis. Comparative Economic Research. Central and Eastern Europe, [S. l.], v. 17, n. 4, p. 187–202, 2014. DOI: 10.2478/cer-2014-0040. Disponível em: https://www.czasopisma.uni.lodz.pl/CER/article/view/7051. Acesso em: 8 dec. 2025.