?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Wang%2C+W&rft.aufirst=W&rft.aulast=Wang&rft.title=Astronomy+%26+Astrophysics&rft.pages=873-886&rft.issue=3&rft.date=December+2004&rft.atitle=A+reexamination+of+electron+density+diagnostics+for+ionized+gaseous+nebulae&rft.volume=427&rft.genre=article