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2. Authors may enter into additional separate contractual arrangements for non-exclusive distribution of the published version of the work in the journal (e.g., publishing it in an institutional repository or publishing it in a book), with an acknowledgement of initial publication in this journal.
   
   

3. Authors are allowed and encouraged to publish their work online (e.g., in institutional repositories or on their website) before and during the submission process, as it may lead to productive exchanges as well as earlier and higher citation of the published work.