Gonçalves, António, Marielba Zacarias, and Pedro Sousa. “How to Model People Work Practices from Ontological Transactions”. Journal of Tourism, Sustainability and Well-being 1, no. 1 (October 30, 2013): 46–62. Accessed October 27, 2025. https://journals.cinturs.pt/jtsw/article/view/3.