Nahayo, Emmanuel, Pieter B. Kotzé, Pierre J. Cilliers, and Stefan Lotz. “Observations from SANSA’s Geomagnetic Network During the Saint Patrick’s Day Storm of 17–18 March 2015”. South African Journal of Science 115, no. 1/2 (January 30, 2019). Accessed June 27, 2022. https://sajs.co.za/article/view/5204.