1. American Public Health Association Inc (ed) (1969) Standard methods for the examination of water and wastewater including bottom sediments and sludge. New York, pp 604?609
2. Barker HA (1936) On the fermentation of some dibasic C4-acids by Aerobacter aerogenes. Proc Acad Sci Amst 39:674
3. Bergmeyer HU (1974) Methoden der enzymatischen Analyse, 3rd edn. Verlag Chmie, Weinheim
4. Buchanan RE, Gibbons NE (1974) Bergey's manual of determinative bacteriology, 8th edn. Williams and Wilkins Co, Baltimore
5. Dagley S, Trudgill PW (1963) The metabolism of tartaric acid by a Pseudomonas. A new pathway. Biochem J 89:22?31