Don't have Telegram yet? Try it now!
https://yuyencia.org/2018/03/03/%e4%b8%ad%e5%8f%a4%e6%97%b6%e6%9c%9f%e5%8c%97%e6%96%b9%e5%9c%b0%e5%8c%ba%e7%95%9c%e7%89%a7%e4%b8%9a%e7%9a%84%e5%8f%98%e5%8a%a8/
中古时期北方地区畜牧业的变动