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2020
Assessing Safety and Suitability of Old Trails for Hiking Using Ground and Drone Surveys.
[DOI]
Shiou Yih Lee
,
Chengju Du
,
Zhihui Chen
,
Hao Wu
,
Kailang Guan
,
Yirong Liu
,
Yongjie Cui
,
Wenyan Li
,
Qiang Fan
,
Wenbo Liao
ISPRS Int. J. Geo Inf., 2020