Duve, Thomas MPI for European Legal History, Max Planck Society;
http://www.rg.mpg.de/1009830/gplh_1_duve.pdf (Any fulltext)
Duve, T. (2014). European Legal History - Concepts, Methods, Challenges. In T. Duve (Ed.), Entanglements in Legal History: Conceptual Approaches (pp. 29-66). Frankfurt a.M.: Max Planck Institute for European Legal History.