WILLIAMS, C. C. Evaluating the Extent and Nature of ‘Envelope Wages’ in the European Union: A Geographical Analysis. European Spatial Research and Policy, [S. l.], v. 16, n. 1, p. 115–129, 2009. DOI: 10.2478/v10105-009-0007-3. Disponível em: https://czasopisma.uni.lodz.pl/esrap/article/view/7826. Acesso em: 29 apr. 2024.