@article {Alocilja:August 1998:0308-521X:585,
	author = "Alocilja E.C.",
	title = "An Optimization Model for Zero-Excess Phosphorus Management",
	journal = "Agricultural Systems",
	volume = "57",
	year = "August 1998",
	abstract = "",
	pages = "585-597(13)",
	url = "http://www.ingentaconnect.com/content/els/0308521x/1998/00000057/00000004/art00010"
	doi = "doi:10.1016/S0308-521X(98)00010-9"
}