A Comparative Investigation of Different Ionospheric Models to Predict the MUF Parameter During Severe Geomagnetic Storm on 17th March 2015. Iraqi Journal of Science [Internet]. 2024 Nov. 15 [cited 2024 Dec. 27];65(10(SI):5988-9. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11220