@article{201902.0171,
	doi = {10.20944/preprints201902.0171.v1},
	url = {https://doi.org/10.20944/preprints201902.0171.v1},
	year = 2019,
	month = {February},
	publisher = {Preprints},
	author = {José Santos and Liliana Azevedo and Joaquim Patriarca and Luis Leitão},
	title = {Volunteered Geographical Information and Digital Social Networks applied to Tourism Dynamics in the “Alta and University of Coimbra” (UNESCO world Heritage Site)},
	journal = {Preprints}
}