Title: Central Places, Trade Flows, and Input-Output Analysis: Another Look at Estimating Regional Purchase CoefficientsWilliam C. Peterson,Roger J. Beckmsra引用 24|浏览1暂无评分摘要Abstract ,3更多查看译文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