1. Artis, W.G. and Bawden, R.F. (1945). Cereal Chem., 22, 22–40.
2. Barrett, J., Bathgate, G.N. and Clapperton, J.F. (1975). J. Inst. Brewing, 81, 31–36.
3. Bathgate, G.N. (1969). Chem. and Ind., April, 520–521.
4. Bathgate, G.N., Clapperton, J.F. and Palmer, G.H. (1973). Proc. Bur. Brew. Conv., Salzburg, 183–196.
5. Bunker, H.I. (1972). In Quality Control in the Food Industry, 3, ed. Herschdoerfer, S.M. pp. 81–149. London: Academic Press.