@techreport{NBERw12978,
 title = "Wage Structure and Firm Productivity in Belgium",
 author = "Thierry Lallemand and Robert Plasman and Francois Rycx",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "12978",
 year = "2007",
 month = "March",
 URL = "http://www.nber.org/papers/w12978",
}