1. Batch kinetics of nitrogen and phosphorus removal from synthetic wastewater by algae;Aslan;Ecol. Eng.,2006
2. Determination of nitrogen in water technology;Praus;Proc. Sci. Work,2002
3. Local effects of pollution on the chemical composition of precipitation in areas differing in the human impact;Walna;Pol. J. Environ. Stud.,2004
4. A spectrophotometric method for the determination of nitrite and nitrate;Narayana;Eurasian J. Anal. Chem.,2009
5. Ammonium compounds;Weston,2003