1. Adriaens T, Devisscher S, Louette G (2013) Risk analysis of American bullfrog, Lithobates catesbeianus—risk analysis report of non-native organisms in Belgium. Rapporten van het Instituut voor Natuur-en Bosonderzoek (INBO) 2013, INBO.R.2013.41. INBO, Brussels
2. Baiwy E, Schockert V, Branquart E (2013) Risk analysis of the raccoon dog Nyctereutes procyonoides—risk analysis report of non-native organisms in Belgium. Cellule interdépartementale sur les Espèces invasives (CiEi), DGO3, SPW/Editions, Gembloux
3. Baker R, Black R, Copp GH et al (2008) The UK risk assessment scheme for all non-native species. In: Rabitsch W, Essl F, Klingenstein F (eds) Biological Invasions—from Ecology to Conservation Neobiota 7. Technische Universität, Berlin, pp 46–57
4. Belgian Biodiversity Platform (2014a) Harmonia, an information system on alien species threatening native biodiversity in Belgium and in neighbour areas. http://ias.biodiversity.be . Accessed November 2014
5. Belgian Biodiversity Platform (2014b) Harmonia +, Pandora and Pandora +, online risk screening tools for potentially invasive plants, animals and their pathogens. http://ias.biodiversity.be . Accessed November 2014