SZUKALSKI, Stanisław Maciej; DĄBROWSKA, Anna; JANOŚ-KRESŁO, Mirosława; PIOTRKOWSKI, Jan. Impact of Liberalization in European Union on Innovativeness and Competitiveness of Polish Services Companies in the Perspective of Research. Acta Universitatis Lodziensis. Folia Oeconomica, Poland, v. 4, n. 337, p. 127–153, 2018. DOI: 10.18778/0208-6018.337.09. Disponível em: https://czasopisma.uni.lodz.pl/foe/article/view/2310. Acesso em: 7 aug. 2026.