Ittmann, H.W.Kruger, H.A.2019-09-302019-09-302019Ittmann, H.W. & Kruger, H.A. 2019. Annual conferences of the Society. (In Kruger, H.A. & Van Vuuren, J.H., eds. Operations research in South Africa: the first 50 years. Stellenbosch: African SUNMedia. p.167-203.)978-0-620-84721-6http://hdl.handle.net/10394/33368enBook chapter