PRENNER, M.; MICHELBERGER, F.; SAMAC, K. Introducing a New Dimension in the Professionalization of Trainers in Railway Services. R&E-SOURCE, [S. l.], n. 4, 2015. Disponível em: https://journal.ph-noe.ac.at/index.php/resource/article/view/198. Acesso em: 3 juli. 2024.