Early Mixed Farming of Millet and Rice 7800 Years Ago in the Middle Yellow River Region, China Zhang, Jianping ; Lu, Houyuan ; Gu, Wanfa ; Wu, Naiqin ; Zhou, Kunshu ; Hu, Yayi ; Xin, Yingjun ; Wang, Can Abstract Publication: PLoS ONE Pub Date: December 2012 DOI: 10.1371/journal.pone.0052146 Bibcode: 2012PLoSO...752146Z