7 citations as recorded by crossref.

1. Structure of the Earth's lower ionosphere observed by GPS/MET radio occultation K. Hocke & K. Igarashi https://doi.org/10.1029/2001JA900158
2. D-region electron density evaluated from VLF amplitude time delay during X-ray solar flares V. Žigman et al. https://doi.org/10.1016/j.jastp.2007.01.012
3. Co-ordinated studies using imaging riometer and incoherent scatter radar P. Collis & J. Hargreaves https://doi.org/10.1016/S1364-6826(96)00062-4
4. Multi-instrument observations of the dynamics of auroral arcs: a case study C. del Pozo et al. https://doi.org/10.1016/S1364-6826(02)00083-4
5. Joint imaging riometer—Incoherent scatter radar obser vations: A four-dimensional perspective on energetic particle input to the auroral mesosphere P. Collis et al. https://doi.org/10.1016/S0273-1177(97)00766-7
6. A new technique for deriving the quiet day curve from imaging riometer data at Zhongshan Station, Antarctic F. He et al. https://doi.org/10.1007/s11431-014-5616-z
7. Lower-ionosphere electron density and effective recombination coefficients from multi-instrument space observations and ground VLF measurements during solar flares V. Žigman et al. https://doi.org/10.1016/j.jastp.2023.106074