?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=M.+Oost&rft.aulast=M.+Oost&rft.date=2014&rft.degree=Master&rft.title=Cluster+Theory%3A+Related+Diversity+and+Employment+Growth+in+Dutch+Topsector+%E2%80%98Life+Science+and+Health%E2%80%99+Clusters