@article {8465,
	title = {A new delimitation of the genera Coronilla, Hippocrepis, and Securigera. (Fabaceae)},
	journal = {Willdenowia},
	volume = {19},
	year = {1989},
	month = {1989///},
	pages = {49 - 62},
	author = {P. Lassen}
}
@article {8305,
	title = {Om kroniller, sl{\"a}ktet Coronilla, i Norden},
	journal = {Svensk Bot. Tidskr},
	volume = {83},
	year = {1989},
	month = {1989///},
	pages = {83 - 86},
	author = {P. Lassen}
}
@article {8454,
	title = {An expanded circumscription of Medicago (Leguminosae, Trifolieae) based on explosive flower tripping},
	journal = {Willdenowia},
	volume = {16},
	year = {1987},
	month = {1987///},
	pages = {415 - 437},
	author = {E. Small and P. Lassen and B.S. Brookes}
}
