8Arnon DI.1949.Copper Enzymes in isolated chloroplasts polyphenoloxidase in Beta vulgaris.Plant Physiology,24:1-15.
9Duarte CM,Kalff J.1986.Littoral slope as a predictor of the maximum biomass of submerged macrophyte communities.Limnology and Oceanography,31:1072-1080.
10Froend RH,McComb J.1994.Distribution,productivity and reproductive phenology of emergent macrophytes in relation to water regimes at wetlands of South-western Australia.Australian Journal of Marine and Freshwater Research,45:1491-508.