@techreport{aac9db59cc4748fd8acf49b19afb527e,
title = "Upgrading in the European Union",
author = "{de Grip}, A. and J. Hoevenberg",
year = "1996",
month = jan,
day = "1",
doi = "10.26481/umaror.199603E",
language = "English",
series = "ROA Research Memoranda",
publisher = "Researchcentrum voor Onderwijs en Arbeidsmarkt, Faculteit der Economische Wetenschappen",
number = "3E",
type = "WorkingPaper",
institution = "Researchcentrum voor Onderwijs en Arbeidsmarkt, Faculteit der Economische Wetenschappen",
}