Directorate-General for Internal Policies. Policy Department Economic and scientific Policy - European Parliament
Analysis document/working paper/article
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	The role of mutual societies in the 21st century Study for The European Parliament Douwe Grijpstra, Simon Broek, Bert-Jan Buiskool, Mirjam Plooij, July 2011 Directorate-General for Internal Policies. Policy Department Economic and scientific Policy - European Parliament 
