https://dds.las.ac.cn/service/document?appId=a1vacbnPuv9qJRzJvdNXfsesj9JbIa6e&appKey=sPBA4vANLzjnW1k5eufEcc4k7dxfNraW&ts=1763018291908&signature=6eb64d75da058966c1c08827d4bb789a&articleTitle=Geomorphological+mapping&articleAuthor=Smith%2C+Mike&publicationTitle=Geomorphological+mapping&language=&publicationType=1&publishYear=2011&isn=9780444534460&publisher=