@book{211696,
	author = {UN. ECA},
	title = {Assessing regional integration in Africa III},
	publisher = {Economic Commission for Africa},
	year = {2008},
	address = {Addis Ababa},
	note = {Annexes (p. 99-102): 1. The "Patchwork Quilt Approach" to Monetary Union in Africa -- 2.A Primer on Beta and Sigma Convergence.}
}