1. Butcher, R.G., Altman, F.P.: Studies on the reduction of tetrazolium slats. II. The measurement of half reduced and fully reduced formazans of neotetrazolium chloride in tissue sections. Histochemie 37, 351?363 (1973)
2. Chayen, J., Altman, F.P., Butcher, R.G.: The effect of certain drugs on the production and possible utilization of reducing equivalents outside the mitochondria. In: Dikstein, S. (Ed.), Fundamentals of cell pharmacology. Chicago, Illinois: Charles C. Thomas 1973a
3. Chayen, J., Bitensky, L., Butcher, R.G.: Practical histochemistry. London: John Wiley & Sons 1973b
4. Chayen, J., Bitensky, L., Butcher, R.G.: Histochemie. Grundlagen und Methoden. Weinheim: Verlag Chemie 1975
5. Chayen, J., Bitensky, L., Butcher, R.G., Altman, F.P.: Cellular biochemical assessment of steroid activity. In: Briggs, M.H., Christie, G.A. (Eds.), Advances in steroid biochemistry and pharmacology, Vol. 4, pp. 1?60. London: Academic Press 1974