Nymphas, E.F., and T.A. Adeyemi. “Variability of Sporadic-E (es) Layer at Two Equatorial Stations: Fortaleza (3os, 38ow) and Ilorin (8.5on, 4.5oe)”. Journal of Science and Technology 34, no. 3 (February 20, 2016). Accessed July 16, 2024. https://webapps.knust.edu.gh/just/index.php?journal=just&page=article&op=view&path[]=25.