@article {7812,
	title = {Sequence alignment, parameter sensitivity, and the phylogenetic analysis of molecular data},
	journal = {Systematic Biology},
	volume = {44},
	number = {3},
	year = {1995},
	note = {PDF},
	pages = {321-331},
	keywords = {alignment, congruence, phylogenetics, poy, sensitivity, support},
	author = {Wheeler, Ward C.}
}
@article {7823,
	title = {Partition-free congruence analysis: implications for sensitivity analysis},
	journal = {Cladistics},
	volume = {22},
	year = {2006},
	note = {PDF},
	pages = {256-263},
	keywords = {combined data analyses, molecular characters, phylogenetics, sensitivity, total evidence},
	author = {Wheeler, Ward C. and Ram{\'\i}rez, Mart{\'\i}n J. and Aagesen, Lone and Schulmeister, Susanne}
}
