@article {7219,
	title = {Is convergence more than an analogy? Homoplasy and its implications for macroevolutionary predictability},
	journal = {Biology and Philosophy},
	volume = {22},
	year = {2007},
	note = {PDF},
	pages = {565-578},
	keywords = {constraints, convergence, evolution, homoplasy, macroevolution, parallelism, philosophy, phylogenetics},
	author = {Powell, Russell}
}
