共 50 条
- [4] The implications of increased racial and ethnic diversity for recreation resource management, planning, and research PROCEEDINGS OF THE 1996 NORTHEASTERN RECREATION RESEARCH SYMPOSIUM, 1996, 232 : 3 - 7
- [5] Substitutability Research between Trip Modes in Traffic Management 2013 INTERNATIONAL CONFERENCE ON MANAGEMENT (ICM 2013), 2013, : 1434 - 1440