Pershing, Jonathan and Fernando Tudela (2003), “A Long-Term Target: Framing the Climate Effort,” in Joseph Aldy et al., Beyond Kyoto: Advancing the international effort against climate change, Arlington, VA: Pew Center on Global Climate Change, pp. 11-36.
Fischer, Carolyn and Richard Morgenstern (2009), “Metrics for Evaluating Policy Commitments in a Fragmented World: The Challenges of Equity and Integrity,” Discussion Paper 08-17, The Harvard Project on International Climate Agreement. available at: <http://belfercenter.ksg.harvard.edu/files/Morgenstern Web.pdf>
UNFCCC (2008f), “Synthesis of information relevant to the determination of the mitigation potential and to the identification of possible ranges of emission reduction objectives of Annex I Parties: an update,” FCCC/TP/2008/10, available at <http://unfccc.int/resource/docs/2008/tp/10.pdf>