Funding for this research was provided by:
Fondazione Banco di Sardegna (Landscape Governance"., Research project "Cultural Districts in Sardinia Region. A toolkit for the Cultural Heritage)
Text and Data Mining valid from 2020-01-30
Received: 23 September 2019
Accepted: 14 January 2020
First Online: 30 January 2020
: The authors declare that they have no competing interests.