@article{201703.0231,
	doi = {10.20944/preprints201703.0231.v1},
	url = {https://doi.org/10.20944/preprints201703.0231.v1},
	year = 2017,
	month = {March},
	publisher = {Preprints},
	author = {Jianbo Yang and Xin Li and Qunyi Liu},
	title = {China's Copper Demand Forecasting Based on System Dynamics Model},
	journal = {Preprints}
}