Abebe, Surafel, Venera Arnaoudova, Laleh Eshkevari, Aminata Sabane, and Wei Wu. “Special Issue of PPAP 2013: Preface”. Electronic Communications of the EASST 59 (July 1, 2014). Accessed October 30, 2024. https://eceasst.org/index.php/eceasst/article/view/2128.