AI-Mahdi, H. and Mokheber, A. (2017) “A study of Geomagnetic Field and It’s secular variation at the Location Brazilian Anomaly (25°S, 45°W)”., Ibn AL-Haitham Journal For Pure and Applied Sciences, 21(1), pp. 27–34. Available at: https://jih.uobaghdad.edu.iq/index.php/j/article/view/1370 (Accessed: 3 April 2025).