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.
Trace element accumulation in tree rings of pinus halepensis during the last 140 years
by
Pantera A., Papadopoulos A.M. and Orfanoudakis M.