Cost per Citation $0.03 Cost per Article/ Per Impact Factor $0.35
	Cost per Citation $0.08 Cost per Article/ Per Impact Factor $0.72
	Cost per Citation $0.15 Cost per Article/ Per Impact Factor $1.15
	Cost per Citation $0.12 Cost per Article/ Per Impact Factor $0.75
Costs based on Tier 3, US institutional 2009 subscription. Citation and Impact Factor data based on 2008 Thomson / ISI Journal Citation Reports™.