Weiland, L., Law, C. and Sunjka, B. 2020. ENSURING SUSTAINABLE AND RESILIENT AIR TRAFFIC MANAGEMENT SYSTEMS FOR SOUTH AFRICA WITH COMPLEXITY AND WHOLE-OF-SOCIETY THEORY APPROACHES. The South African Journal of Industrial Engineering. 31, 3 (Nov. 2020), 97–109. DOI:https://doi.org/10.7166/31-3-2424.