Home Department-Independent Research Groups Dr. Ilka Bischofs-Pfeifer Supervised Theses Publications of Lay-Sun Ma All genres Journal Article (1) Journal Article (1) 2018 Journal Article Ma, Lay-Sun, Pellegrin, Clément and Kahmann, Regine: (2018), 46, December, pp. 123–130. MPG.PuRe DOI