First record of the invasive Australian redclaw crayfish <i>Cherax quadricarinatus</i> (von Martens, 1868) in the Crocodile River, Kruger National Park, South Africa

by Robin M. Petersen, Andries C. Hoffman, Pieter Kotze, Sean M. Marr
Published 2017-03-01

New geomagnetic field observations in the South Atlantic Anomaly region

by Pieter Kotzé, Anne Hemshorn, Hans-Joachim Linthe, Mioara Mandea, Monika Korte, Edgard Ricaldi
Published 2009-06-01