Vermeulen, J.H, and M.T Freiman. “A LONG-RANGE ATMOSPHERIC TRANSPORT MODEL (HY-SPLIT) FOR ENVIRONMENTAL EMERGENCY RESPONSE (EER): EVALUATION OF DRIVING MODELS”. Clean Air Journal 13, no. 1 (June 3, 2003). Accessed March 28, 2024. https://cleanairjournal.org.za/article/view/7149.