@article {1461,
	title = {To be or not to be: Principles of classification and monotypic plant families},
	journal = {Taxon},
	volume = {47},
	year = {1998},
	pages = {391-400},
	keywords = {CLADISTICS, CLASSIFICATION, paraphyly},
	author = {Backland, A. and Bremer, K.}
}
