?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Ercolano&rft.au=Ercolano%2C+B&rft.aufirst=B&rft.date=October+2004&rft.atitle=Observations+and+three-dimensional+photoionization+modelling+of+the+Wolf-Rayet+planetary+nebula+NGC+1501&rft.volume=354&rft.title=Monthly+Notices+of+the+Royal+Astronomical+Society&rft.pages=558-574&rft.issue=2&rft.genre=article