ISSN 0041-4751 printed version

EDITORIAL BOARD

• Editors
• Associated editors
• Editorial board
• Editorial production

• Editor in Chief:
  
  Prof RC (Ina) Wolfaardt-Gräbe
  Email: publikasies@akademie.co.za
  The South African Academy for Science and Arts, Engelenburg House, 574 Ziervogel Street, Private Bag X11, Arcadia, 0007, South Africa

EDITORIAL BOARD:

• AE  Carl, University of Stellenbosch, Stellenbosch, South Africa
• WAM Carstens, Northwest University, Potchefstroom, South Africa
• P Engelbrecht , Canterbury, United Kingdom
• PJ Fourie, University of South Africa, Pretoria, South Africa
• DP Goosen, University of South Africa, Pretoria, South Africa
• IJ Grové, University of Stellenbosch, Stellenbosch, South Africa
• CH Heyns, University of Pretoria, Pretoria, South Africa
• EF Kotzé, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa
• DS Lubbe, University of the Free State, Bloemfontein, South Africa
• F Pretorius, University of Pretoria, Pretoria, South Africa
• DFM Strauss, University of the Free State, Bloemfontein, South Africa
• HP van Coller, University of the Free State, Bloemfontein, South Africa
• L Viljoen, University of Stellenbosch, Stellenbosch, South Africa
• MP Wissing, Northwest University, Potchefstroom, South Africa
• Prof. J. van der Elst, Suid-Afrikaanse Akademie vir Wetenskap en Kuns, Pretoria, South Africa (Chief Executive Officer)

National Editorial Board:

• P. Burger, Free State University, Bloemfontein, South Africa
• CS . de Beer, Em. University of South Africa, Pretoria, South Africa
• DJ Hugo, Publisher, Cape Town, South Africa
• JG Maree, University of Pretoria, Pretoria, South Africa
• CHF Ohlhoff, University of Pretoria, Pretoria, South Africa
• JP Smuts, Em. University of Stellenbosch, Stellenbosch, South Africa
• ME Snyman, University of Pretoria, Pretoria, South Africa
• JC Sonnekus, University of Johannesburg, Johannesburg, South Africa
• TB van der Walt, University of South Africa, Pretoria, South Africa
• GB van Huyssteen, Northwest University, Potchefstroom, South Africa
• G Verhoef, University of Johannesburg, Johannesburg, South Africa
• Y Waghid, University of Stellenbosch, Stellenbosch, South Africa

International Editorial Board:

• J Athanasou, University of Technology, Sydney, Australia
• R. Bar-On, University of Texas, Medical Branch, USA
• J Goedegebuure, Leiden University, Leiden, The Netherlands
• M Janssens, Catholic University of Leuven, Leuven, Belgium
• S Kortmann, Radboud University, Nijmegen, The Netherlands
• P T Roberge, University of North Carolina, Chapel Hill, USA
• P van Tongeren, Radboud University, Nijmegen, The Netherlands
• G Verbeeck, University of Maastricht and Catholic University of Leuven, Belgium
• B Wallace, Oxford University, United Kingdom

• Text editing, preparation and copydesk:
  Prof. R.C. Gräbe

• Typeset/Layout:
  V&R Printing, Pretoria