Preface "Advances in tourism, technology and systems. Proceedings from ICOTTS19"

Rocha, ÁlvaroAbreu, AntónioCarvalho, João VidalLiberato, DáliaAlén, ElisaLiberato, Pedro2021-02-182021-02-182020978-981-15-2024-2978-981-15-2023-52190-3018http://hdl.handle.net/10400.22/17051engPreface "Advances in tourism, technology and systems. Proceedings from ICOTTS19"other10.1007/978-981-15-2024-2