@book { Akaleidoscopeoftourismresearch,
    title = "A kaleidoscope of tourism research:",
    author = "Michael {Lück} and Claire {Liu}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b18323",
    url = "https://www.peterlang.com/document/1059496"
}