WYSZKOWSKA-KUNA, Joanna. Innovation in Services - Theoretical Approach. Comparative Economic Research. Central and Eastern Europe, [S. l.], v. 14, n. 4, p. 25–46, 2012. DOI: 10.2478/v10103-011-0025-z. Disponível em: https://www.czasopisma.uni.lodz.pl/CER/article/view/6668. Acesso em: 10 dec. 2025.