Thomas Raff 
 Die gewöhnlichen Erhaltungskosten
 Verwendungsersatz und Nutzungszuordnung im Eigentümer-Besitzer-Verhältnis 
  
[Customary Maintenance Costs. Reimbursement of Outlays and Terms of Use in Owner-Possessor Relationships.]
 2017. XXVI, 569 pages.    Summary 
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  Summary 
 Thomas Raff investigates by way of Roman law, pandectistics, German, French, Austrian, and Polish law, if and to what extent usage and use relate to one another in restitution law. On this basis, he develops a maintenance- and improvement-principle capable of defining the owner-possessor relationship.
   
 