1. Ambler RP (1972) Enzymatic hydrolysis with carboxypeptidases. In: Colowick SP (ed) Methods in enzymology, Vol. 25. Academic Press, New York.
2. Andersen SO, Barrett FM (1971) The isolation of ketocatechols from insect cuticle and their possible role in sclerotization. J Insect Physiol 17:69–83.
3. Andrews P, Male CA (1969) Sephadex thin-layer gel filtration. In: Smith I (ed) Chromatographic and electrophoretic techniques 3rd edn., Vol. 1. Heine-mann, London.
4. Arbuthnott JP, Beeley JA (eds) (1975) Isoelectric focusing. Butterworth, London.
5. Bradford MM (1976) A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem 72:248–254.