Gruner, StefanWatson, Bruce William2009-02-262009-02-262008-06-282009-02-26Gruner, S & Watson, B 2008, 'Preface by the editors' in Colloquium and Festschrift at the occasion of the 60th birthday of Derrick Kourie (Computer Science), Windy Brow, South Afica, 28 June 2008. [http://www.cs.up.ac.za/cs/sgruner/Festschrift/]http://hdl.handle.net/2263/9046The Post-Proceedings of this Festschrift will be formally published in The South African Computer Journal number 41.When we heard that one of Derrick’s undergraduate students, a genuine boeremeisie (farmgirl) from the plattland, indeed addressed him as oom — how sweet! — instead of “mister” or “professor” we knew that the time had arrived for preparing a little birthday surprise: Colloquium and Festschrift at the Occasion of the 60th Birthday of Derrick Kourie!enStefan GrunerPrefaceFestschriften -- South AfricaKourie, DerrickText