Lafontaine, R.-M., Beudels-Jamar, R.C., Delsinne, T., Robert, H. 2013. Risk analysis of the Water Pennywort Hydrocotyle ranunculoides (L.F., 1781). Risk analysis report of non-native organisms in Belgium from the Royal Belgian Institute of Natural Sciences for the Federal Public Service Health, Food chain safety and Environment. 59 pp.

Lafontaine, R.-M., Beudels-Jamar, R.C., Delsinne, T., Robert, H. 2013. Risk analysis of the Water Pennywort Hydrocotyle ranunculoides (L.F., 1781). Risk analysis report of non-native organisms in Belgium from the Royal Belgian Institute of Natural Sciences for the Federal Public Service Health, Food chain safety and Environment. 59 pp.