de Freitas, I. V. Et Al. 2019. Tourism in Porto's Historic Centre: Analysing Risks and Safeguarding of the Landscape. 2nd International Conference on Tourism Research (ICTR) , (Porto, Portugal), 345-360.

de Freitas, I. V., Sousa, C., Marques, J., Ribeiro, S., Yasar, S., & Pires, H., (2019). Tourism in Porto's Historic Centre: Analysing Risks and Safeguarding of the Landscape . 2nd International Conference on Tourism Research (ICTR) (pp.345-360). Porto, Portugal

de Freitas, Isabel Et Al. "Tourism in Porto's Historic Centre: Analysing Risks and Safeguarding of the Landscape," 2nd International Conference on Tourism Research (ICTR), Porto, Portugal, 2019

de Freitas, Isabel V. Et Al. "Tourism in Porto's Historic Centre: Analysing Risks and Safeguarding of the Landscape." 2nd International Conference on Tourism Research (ICTR) , Porto, Portugal, pp.345-360, 2019

de Freitas, I. V. Et Al. (2019) . "Tourism in Porto's Historic Centre: Analysing Risks and Safeguarding of the Landscape." 2nd International Conference on Tourism Research (ICTR) , Porto, Portugal, pp.345-360.

@conferencepaper{conferencepaper, author={Isabel Vaz de Freitas Et Al. }, title={Tourism in Porto's Historic Centre: Analysing Risks and Safeguarding of the Landscape}, congress name={2nd International Conference on Tourism Research (ICTR)}, city={Porto}, country={Portugal}, year={2019}, pages={345-360} }