Published Foaming control in activated sludge treatment plants by coagulants addition by Mamais D., Kalaitzi E. and Andreadakis A. 237-245_751_Mamais_13_3.pdf
Published Concentrations of the selected air pollutants at Bily Kriz, the Czech Republic, for 1994 to 1999 by Tshiamala Mbuyi M.-H tshiamala-mbuyi.pdf