KIJEK, A. Impact of Business Cycles on Innovation Activity of Enterprises in EU Countries. Acta Universitatis Lodziensis. Folia Oeconomica, [S. l.], v. 4, n. 336, p. 225–238, 2018. DOI: 10.18778/0208-6018.336.14. Disponível em: https://www.czasopisma.uni.lodz.pl/foe/article/view/2455. Acesso em: 27 apr. 2024.