@article {Haarhoff20181819,
	title = {Plant population and maize grain yield: A global systematic review of rainfed trials},
	journal = {Crop Science},
	volume = {58},
	number = {5},
	year = {2018},
	pages = {1819-1829},
	doi = {10.2135/cropsci2018.01.0003},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85052382932\&doi=10.2135\%2fcropsci2018.01.0003\&partnerID=40\&md5=ae7e4a2754ea799249ee90004df63de8},
	author = {Haarhoff, S.J. and Swanepoel, P.A.}
}
