Robert, H., Lafontaine, R.M., Beudels-Jamar, R.C., Delsinne, T. (2013). Risk analysis of Variable Watermilfoil Myriophyllum heterophyllum Michaux. 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. 33 pp.

Robert, H., Lafontaine, R.M., Beudels-Jamar, R.C., Delsinne, T. (2013). Risk analysis of Variable Watermilfoil Myriophyllum heterophyllum Michaux. 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. 33 pp.