共 50 条
- [31] The 2016 U.S. Presidential Candidates and How People Tweeted About Them [J]. SAGE OPEN, 2018, 8 (03):
- [35] Measuring the U.S. outdoor recreation economy, 2012-2016 [J]. JOURNAL OF OUTDOOR RECREATION AND TOURISM-RESEARCH PLANNING AND MANAGEMENT, 2019, 27