@article{201705.0133,
	doi = {10.20944/preprints201705.0133.v1},
	url = {https://doi.org/10.20944/preprints201705.0133.v1},
	year = 2017,
	month = {May},
	publisher = {Preprints},
	author = {Yu Ye and Xueqiong Wei and Xiuqi Fang and Yikai Li},
	title = {Spatial Distribution of Population Density and Pressure on Sustainable Cropland Use in Shandong Province in China during the 17th-20th Century},
	journal = {Preprints}
}