?url_ver=Z39.88-2004&rft_id=doi%3A10.1017%2FS0016774600000263&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Gunnink%2C+J.+L.&rft.aulast=Gunnink&rft.aufirst=J.+L.&rft.issue=01&rft.volume=92&rft.date=April+2013&rft.issn=0016-7746&rft.atitle=Digital+Geological+Model+(DGM)%3A+a+3D+raster+model+of+the+subsurface+of+the+Netherlands&rft.title=Netherlands+Journal+of+Geosciences&rft.pages=33-46&rft.genre=article