TY - JOUR A1 - Ennis, A. E. A1 - Bailey, G. J. A1 - Moffett, R. J. T1 - Vibrational nitrogen concentration in the ionosphere and its dependence on season and solar cycle JO - Ann. Geophys. J1 - ANGEO VL - 13 IS - 11 SP - 1164 EP - 1171 Y1 - 1995/11/30 PB - Springer Verlag SN - 1432-0576 UR - https://angeo.copernicus.org/articles/13/1164/1995/ L1 - https://angeo.copernicus.org/articles/13/1164/1995/angeo-13-1164-1995.pdf DO - 10.1007/s00585-995-1164-y ER -