Introduzione. - 1. Alcune riflessioni della dottrina civilistica, processualistica, comparatistica. - a) La teoria della cd. proprietà 'relativa'. - b) Rivendica e actio Publiciana. - c) Actio in rem, actio in personam. - 2. L'errore 'logico' nel ragionamento tradizionale. - 3. Conclusioni.
The discipline of art. 948 of the Italian civil code on ownership claim has been strongly influenced by the historical tradition and represents an exception to the today general principle of the atypical nature of the claim. The severity of the burden of proof imposed on the plaintiff (so called probatio diabolica), in particular, makes the discipline difficult to apply in practice, but a review of the historical tradition can help to overcome these difficulties concerning the enforcement of the discipline itself.