GAJDKA, Jerzy. INTRODUCTION. Acta Universitatis Lodziensis. Folia Oeconomica, Poland, v. 1, n. 310, 2015. DOI: 10.18778/0208-6021.310.01. Disponível em: https://www.czasopisma.uni.lodz.pl/foe/article/view/597. Acesso em: 25 may. 2026.