Correia Loureiro, Sandra Maria, Eduardo Moraes Sarmento, e Constantin Witt-Dörring. «An Empiric Analysis of the Online Market for the Adventure Travel Tourism Industry in Germany». Tourism and Hospitality International Journal 7, no. 1 (Abril 27, 2016): 49–69. Acedido Julho 23, 2024. https://revistas.rcaap.pt/thij/article/view/30323.