Contrasting Perceptions: Chinese, African, and European Perspectives on the China-Africa Summit Author: KATHARINA HOFMANN, JÜRGEN KRETZ, MICHAEL ROLL, SEBASTIAN SPERLING. Regional Powers as Leaders or Rambos? The Ambivalent Behaviour of Brazil and South Africa in Regional Economic Integration Author: Sebastian Krapohl, Katharina L. Meissner, Johannes Muntschick. Different Paths of Regional Integration: Trade Networks and Regional Institution-Building in Europe, Southeast Asia and Southern Africa Author: Sebastian Krapohl, Simon Fink.