Johansson, Olof <br/><br/>
The ammonia-ammonium equilibrium in seawater at temperatures between 5 and 25°C / 
Olof Johansson and Margareta Wedborg  
 - New York :  Springer,  1980 
 - pp. 37–44 
<br/><br/> Journal of Solution Chemistry, Vol. 9, no. 1 (1980)