LI, Wei; JIAN, Ting. Spatio-temporal Differentiation of Urban Tourism Vitality in Lanzhou City Center. Frontiers in Humanities and Social Sciences, [S. l.], v. 6, n. 7, p. 234–244, 2026. DOI: 10.54691/87s6yp71. Disponível em: https://fhssjournal.org/index.php/ojs/article/view/720. Acesso em: 17 jul. 2026.