1. Algal cultures as a means to assess the fertilizing influence of pollution;Skulberg,1966
2. Provisional algal assay procedure,1969
3. Evaluation of a modified 14C technique for shipboard estimation of photosynthesis in large lakes;Saunders;Great Lakes Res. Div., Publ. No. 8,1962
4. Methods for Chemical Analysis of Fresh Waters;Golterman,1972
5. Schweizerische Lebensmittelbuch, IV ed., Mod. EAWAG.