Christian H. Jahn 
 Der Bereicherungsausgleich im Mehrpersonenverhältnis
 - dargestellt anhand der Rückabwicklung von Werk- und Dienstleistungen 
  
[The Compensation for Unjustified Enrichments in Multi-Party Situations as Portrayed by the Restitution of Works and Services.]
 2014. XII, 248 pages.    Summary 
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  Summary 
 How are unjustified enrichments of works and services restituted in a work-sharing economy? Analysing a variety of cases, Christian H. Jahn develops a law-based solution not only for the restitution of works and services, but for the restitution of unjustified enrichments in multi-party situations generally.