Pretorius, D.-L., R. Goede, and J. Terblanche. “Action Research or Design Science Research As Methodology for the Development of a Historical Digital Graphical Novel? A Critical Systems Perspective”. Proceedings of the 59th Annual Meeting of the ISSS - 2015 Berlin, Germany, vol. 1, no. 1, Jan. 2016, https://journals.isss.org/index.php/proceedings59th/article/view/2469.