Culp, J. and Schumacher, H. (2011) Reciprocity in Economic Games. Analyse & Kritik, Vol. 33 (Issue 1), pp. 349-364. https://doi.org/10.1515/auk-2011-0123
Culp, Julian and Schumacher, Heiner. "Reciprocity in Economic Games" Analyse & Kritik 33, no. 1 (2011): 349-364. https://doi.org/10.1515/auk-2011-0123