@article {6881,
	title = {Tackling speciose genera: species composition and phylogenetic position of Senecio sect. Jacobaea (Asteraceae) based on plastid and nrDNA sequences},
	journal = {Am. J. Bot},
	volume = {89},
	year = {2002},
	month = {2002///},
	pages = {929 - 939},
	author = {P.B. Pelser and B. Gravendeel and R. van der Meijden}
}
