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Using UAV remote sensing for a population census of blue sheep (Pseudois nayaur) in Maduo county, source region of the Yellow River
Xing-jian GUO, Quan-qin SHAO, Fan YANG, Yu-zhe LI, Yang-chun WANG, Dong-liang WANG
JOURNAL OF NATURAL RESOURCES . 2019, (5): 1054 -1065 .  DOI: 10.31497/zrzyxb.20190512