An experimental and theoretical study of the mean diurnal variation of O<sup>+</sup>, NO<sup>+</sup>, O<sub>2</sub><sup>+</sup>, and N<sub>2</sub><sup>+</sup> ions in the mid‐latitude <i>F</i><sub>1</sub> layer of the ionosphereD. G. Torr, D. W. Rusch, Marsha R. Torr et al.|Journal of Geophysical Research Atmospheres|1979Cited by 52
Atomic nitrogen densities in the thermosphereD. G. Torr, R. F. Theis, A. E. Hedin et al.|Geophysical Research Letters|1976Cited by 49
Metastable ²<i>D</i>atomic nitrogen in the mid-latitude nocturnal ionosphereMarsha R. Torr, J. C. Walker, D. G. Torr et al.|Journal of Geophysical Research Atmospheres|1976Cited by 29
Contamination of ground-based measurements of OI (6300 Å) and NI (5200 Å) airglow by OH emissionsR. G. Burnside, Marsha R. Torr, J. W. Meriwether|Planetary and Space Science|1977Cited by 25
Measurement of metastable N<sup>+</sup>(¹S) 5755‐Å emission in the twilight thermosphereD. G. Torr, R. G. Burnside, Marsha R. Torr et al.|Journal of Geophysical Research Atmospheres|1981Cited by 10