Ecological Indicators Poikane, S, Portielje, R, Denys, L, Elferts, D, Kelly, M, Kolada, A, Mäemets, H, Phillips, G, Søndergaard, M, Willby, N & van den Berg, M S 2018, ' Macrophyte assessment in European lakes : Diverse approaches but convergent views of ‘good’ ecological status ', Ecological Indicators, vol. 94, pp. 185-197 . https://doi.org/10.1016/j.ecolind.2018.06.056 Poikane, S, Portielje, R, Denys, L, Elferts, D, Kelly, M, Kolada, A, Mäemets, H, Phillips, G, Søndergaard, M, J. Willby, N & van den Berg, M S 2018, ' Macrophyte assessment in European lakes: diverse approaches but convergent views of ‘good’ ecological status ' Ecological Indicators, vol. 94, pp. 185-197 . https://doi.org/10.1016/j.ecolind.2018.06.056