Francois Jakob Jacobs, Olaf Lawrence Friedrich Weyl, Eva Marita Ulvan, Clinton Hay, and Tor Fredrik Naesje, “First observation of fouling of externally attached radio transmitters in an African river ”, WSA, vol. 46, no. 4 October, Oct. 2020, doi: 10.17159/wsa/2020.v46.i4.9082.