TY - JOUR AU - Butler-Adam, John PY - 2017/03/29 Y2 - 2024/03/28 TI - Mathematics and… JF - South African Journal of Science JA - S. Afr. J. Sci. VL - 113 IS - 3/4 SE - Leader DO - 10.17159/sajs.2017/a0204 UR - https://sajs.co.za/article/view/3620 SP - 1 AB - ER -