@conference {8707, title = {Ornamentals and invasive plants: if you choose one you get the other as well}, booktitle = {Mini symposium on aliens and invasive species}, year = {2013}, month = {2013}, publisher = {National Botanic Garden of Belgium}, organization = {National Botanic Garden of Belgium}, address = {National Botanic Garden of Belgium, Domein van Bouchout, B-1860 Meise, Belgium}, author = {Ivan Hoste} }