@article {__2016,
	title = {极端干旱事件, 农田管理适应性行为与生产风险: 基于华北平原农户的实证研究},
	journal = {农业技术经济},
	number = {9},
	year = {2016},
	pages = {4{\textendash}17},
	author = {杨宇 and 王金霞 and 黄季焜}
}
