B. R. Silva et al., "Sensing the impact of COVID-19 restrictions from online reviews: The cases of London and Paris unveiled through text mining", in Marketing and Smart Technologies. Smart Innovation, Systems and Technologies, Reis, J. L., Parra López, E., Moutinho, L., and Santos, J. P. M. dos., Ed., La Laguna, Springer Singapore, 2022, vol. 279, pp. 223-232