%0 Journal Article %T Value perception of world heritage sites and tourism sustainability matters through content analysis of online communications %A Garbelli, Maria %A Adukaite, Asta %A Cantoni, Lorenzo %J Journal of Hospitality and Tourism Technology %V 8 %N 3 %P 417-431 %@ 1757-9880 %D 2017-10-02 %I Emerald Group Publishing Limited %~ DeepDyve