Retrieval of thermospheric parameters from routine ionospheric observations: assessment of method’s performance at mid-latitudes daytime hoursA.V. Mikhailov, A. Belehaki, L. Perrone, B. Zolesi and I. TsagouriJ. Space Weather Space Clim., 2 (2012) A03DOI: https://doi.org/10.1051/swsc/2012002