Eser, Albin Criminal Law, Max Planck Institute for Foreign and International Criminal Law, Max Planck Society;
https://freidok.uni-freiburg.de/data/3906 (Any fulltext)
Eser, A. (1987). Justification and Excuse: A Key Issue in the Concept of Crime. In A. Eser, & G. P. Fletcher (Eds.), Rechtfertigung und Entschuldigung (pp. 17-65).