Seasonal variations in dissolved heavy metals in the Keritis river, Chania, Greece by Papafilippaki A.K., Kotti M.E. and Stavroulakis G.G.
Seasonal changes in physico-chemical parameters and nutrient load of river sediments in Ibadan City, Nigeria by Adeyemo O.K., Adedokun O.A., Yusuf, R.K. and Adeleye E.A.