@article {7982,
	title = {Phenological shifts of the alien colonizer Bunias orientalis: Image-based analysis of temporal niche separation},
	journal = {Journal of Vegetation Science},
	volume = {8},
	year = {1997},
	month = {1997///},
	pages = {839 - 846},
	author = {H. Dietz and I. Ullmann}
}
