WASET
    Viktor Achter and  Sebastian Breuers and  Marc Seifert and  Ulrich Lang and  Joachim Götze and  Bernd Reuther and  Paul Müller,  Developing a Sustainable Educational Portal for the D-Grid Community.   journal   = {International Journal of Computer and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2009, vol. 31(7). 1823 - 1830
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/14373.