1. 1. Abdel-Baky T. E., Hagras A. E., Hassan S. H. and Zyadah M. A., 1998 – Environmental Impact Assessment of Pollution in lake Manzalah, I, Distribution of Some Heavy Metals in Water and Sediment, Journal of the Egyptian-German Society of Zoology, 26, B, 25-38.
2. 2. Akköz C. and Yılmaz B., 2009 – Studies on Suğla Lake (Seydişehir/Konya) Benthic Algae, Faculty of Science, Journal of Science, 33, 51-59.
3. 3. Al-Saadi H. A., Al-Lami A. A., Hassan F. A. and Al-Dulymi A. A., 2002 – Heavy Metals in Water, Suspended Particles, Sediments and Aquatic Plants of Habbaniya Lake, Iraq, International Journal of Environmental Studies, 59, 5, 589-598.
4. 4. Baron J., Legret M. and Astruc M., 1990 – Study of Interactions Between Heavy Metals and Sewage Sludge: Determination of Stability Constants and Complexes Formed with Cu and Cd, Environmental Technology, 11, 151-162.
5. 5. Bănăduc D., Rey S., Trichkova T., Lenhardt M. and Curtean-Bănăduc A., 2016 – The Lower Danube River-Danube Delta-North West Black Sea: A pivotal area of major interest for the past, present and future of its fish fauna – A short review, Science of the Total Environment, 545-546, DOI: 10.1016/j.scitotenv.2015.12.05, 137-151.