International Journal of Digital Earth. 2009;2(1):80-87. doi: 10.1080/17538940902746082 Q15.42025
Pinpointing the sources and measuring the lengths of the principal rivers of the world
pinpointing the sources and measuring the lengths of the principal rivers of the world
DOI: 10.1080/17538940902746082
摘要 查看摘要
