GEOGRAPHY IN AMERICA AT THE DAWN OF THE 21ST CENTURY The Human Dimensions of Global ChangeDiana Liverman,Brent Yarnal,Billie Lee, Turner IImsra引用 23|浏览3暂无评分AI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要