Menegaki, Angeliki, Aviral Tiwari, and George Agiomirgianakis. “Asymmetries in European Inbound and Outbound Tourism: Normal, Luxury or Inferior Good? Fresh Evidence from a Quantile Regression”. European Journal of Tourism Research 25 (May 1, 2020): 2508. Accessed October 31, 2020. https://ejtr.vumk.eu/index.php/about/article/view/423.