@article{201909.0332,
	doi = {10.20944/preprints201909.0332.v1},
	url = {https://doi.org/10.20944/preprints201909.0332.v1},
	year = 2019,
	month = {September},
	publisher = {Preprints},
	author = {Jianqing Zhang and Song Wang and Fei Fan and Peilei Yang},
	title = {The Impact of Collaborative Innovation on Ecological Efficiency — Empirical Research Based on China’s Regions},
	journal = {Preprints}
}