?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Rydzak%2C+F.&rft.aulast=Rydzak&rft.aufirst=F.&rft.date=May+2009&rft.title=System+dynamics+model+for+analyzing+and+measuring+the+benefits+of+Global+Earth+Observation&rft.genre=proceeding