[Ne V] Emission on the Skin of the Crab Nebula

[Ne V] Fabry-Pérot observations of the Cygnus Loop

[Ne V] Imaging of N49 in the Large Magellanic Cloud

[NE V] Imaging of the Cygnus Loop

[NeII] emission line profiles from photoevaporative disc winds

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[O III] 500.7 spectroscopy of 3C galaxies and quasars at redshift z>1

[O III] emission line in narrow-line Seyfert 1 galaxies

[O III] Equivalent Width and Orientation Effects in Quasars

[O III] Imagery of the Galactic Plane

[O III]-Detected Emission-Line Galaxies At Intermediate Redshift

[O III]/[N II] as an Abundance Indicator at High Redshift

[O II] as a tracer of current star formation

[O II] Electron Densities in Twelve Planetary Nebulae

[O II] Emission in Quasar Host Galaxies: Evidence for a Suppressed Star Formation Efficiency

[O II] line ratios

[O II]λ3727/Hα Flux Ratio of Emission Line Galaxies

[O i] 63 Micron Absorption in NGC 6334

[O I] 63 micron Emission from High and Low Luminosity AGN Galaxies