Serra, Jaime, Joana Lima, Maria do Rosário Borges, Noémi Marujo, and Ana Maria Ferreira. 2017. “Segmenting Tourists by Expenditure Patterns: An Instrument for Enhancing Tourism Economic Benefits on a Portuguese World Heritage Site”. Journal of Tourism & Development 2 (27/28), 117-19. https://doi.org/10.34624/rtd.v2i27/28.8219.