@article {1462,
	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, PARAPHYLETIC GROUPS},
	author = {Backlund, Anders and Bremer, Kare}
}
