Tente links no:Similares em:
Parent-Thirion, Agnés, Enrique Fernández Macías, John Hurley, e Greet Vermeylen (2005), Fourth European Working Conditions Survey (2005), Dublin, Eurofound, disponível em: http://www.eurofound.europa.eu/ewco/surveys/ewcs2005 (consultado a 28/2/2013).