1. The (Parlous) State of German Unions;Addison;Journal of Labor Research,2007
2. The Measurement of Trade Union Bargaining Power;Armstrong;British Journal of Industrial Relations,1977
3. Arpaia , A. Pérez , E. Pichelmann , K. 2009 Understanding Labour Income Share Dynamics in Europe Economic Papers 379
4. Company-level Pacts for Employment;Bellmann;Jahrbücher für Nationalökonomie und Statistik (Journal of Economics and Statistics),2008