Management decentralization on China's state farms

von Chung, Min Pang
Veröffentlicht in American journal of agricultural economics (1983)

Novel Paste Foam for Sealing and Cooling Coal and Rock Fractures with High Temperature

von Yi, Lu
Veröffentlicht in International Mine Ventilation Congress (11. : 2018 : Xi'an) Proceedings of the 11th International Mine Ventilation Congress (2019)