@inbook {7816, title = {Homology and DNA sequence data}, booktitle = {The character concept in evolutionary biology}, year = {2001}, note = {PDF}, pages = {303-317}, publisher = {Academic Press}, organization = {Academic Press}, address = {San Diego}, keywords = {direct optimization, dynamic homology, homology, molecular characters, poy}, author = {Wheeler, Ward C.}, editor = {Wagner, G. P.} }