P. Denu and E. Berti, The evolution of the Council of Europe Cultural Routes programme Cultural routes management: from theory to practice. Step-by-step guide to the Council of Europe Cultural Routes. Council Europe, 2015.

A. Mariotti and E. Berti, Tourism and Cultural Routes: clusters, cultural districts and tourism systems Cultural routes management: from theory to practice, Stepby-step guide to the Council of Europe Cultural Routes. Council Europe, pp.115-124, 2015.

E. Conti, S. Iommi, S. Rosignoli, and L. Piccini, The European Cultural Routes as engine for sustainable development. The case of Via Francigena in Tuscany, 2015.

A. Edwards, W. Housley, M. Williams, L. Sloan, and W. M. , Digital social research, social media and the sociological imagination: surrogacy, augmentation and re-orientation, International Journal of Social Research Methodology, vol.35, issue.3, pp.245-260, 2014.
DOI : 10.1002/asi.21462

G. Chareyron, J. Da-rugna, R. , and T. , Big data: A new challenge for tourism, 2014 IEEE International Conference on Big Data (Big Data), pp.5-7, 2014.
DOI : 10.1109/BigData.2014.7004475

D. Lazer, A. S. Pentland, and L. Adamic, Life in the network: the coming age of computational social science, Science, pp.323-5915, 2009.

S. Kisilevich, M. Krstajic, and D. Keim, Eventbased analysis of people's activities and behavior using Flickr and Panoramio geotagged photo collections, 14th International Conference Information Visualisation, pp.289-296, 2010.

G. Chareyron, J. Da-rugna, and B. Branchet, Mining tourist routes using Flickr traces, Proceedings of the 2013 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, ASONAM '13, pp.1488-1489, 2013.
DOI : 10.1145/2492517.2500307
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.690.7815

N. Hochman and L. Manovich, Zooming into an Instagram City: Reading the local through social media, First Monday, vol.18, issue.7, 2013.
DOI : 10.5210/fm.v18i7.4711
URL : http://doi.org/10.5210/fm.v18i7.4711

J. C. García-palomares, J. Gutiérrez, and C. Mínguez, Identification of tourist hot spots based on social networks: A comparative analysis of European metropolises using photo-sharing services and GIS, Applied Geography, vol.63, pp.408-417, 2015.
DOI : 10.1016/j.apgeog.2015.08.002

M. Pospecu, G. Grefenstette, and P. Moëllic, Mining Tourist Information from User-Supplied Collections, Proceedings of the 18th ACM conference on Information and knowledge management, pp.1713-1716, 2009.

A. Mohamed and M. Oussalah, Identifying and Extract Named Entities from Wikipedia Database Using Entity Infoboxes, International Journal of Advanced Computer Science and Applications, vol.5, issue.7, 2014.
DOI : 10.14569/ijacsa.2014.050725

S. Tahrat, E. Kergosien, S. Bringay, M. Roche, and M. Teiseire, Text2Geo, Proceedings of the 3rd International Conference on Web Intelligence, Mining and Semantics, WIMS '13, 2013.
DOI : 10.1145/2479787.2479796
URL : https://hal.archives-ouvertes.fr/lirmm-00816294

T. Highfield and T. Leaver, A methodology for mapping Instagram hashtags, First Monday, vol.20, issue.1, 2015.
DOI : 10.5210/fm.v20i1.5563
URL : http://doi.org/10.5210/fm.v20i1.5563

L. Manikonda, Y. Hu, and K. Subbarao, Analyzing user activities, demographics, social network structure and usergenerated content on instagram. arXiv preprint arXiv:1410, 2014.

E. Borra, Instagram Scraper, Amsterdam, NL: Digital Methods Initiative Available at: https://tools.digitalmethods.net, 2015.

T. Zeynep, Big questions for social media big data: Representativeness, validity and other methodological pitfalls, Proceedings of the Eighth International AAAI Conference on Weblogs and Social Media, p.8062, 2014.