?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=G.M.&rft.au=Das%2C+G.M.&rft.aulast=Das&rft.degree=Master&rft.title=Risicomanagement+bij+projectontwikkeling&rft.date=2011