Strauss (1982) Imidazole increases the sensitivity of the cytochemical reaction for peroxidase with diaminobenzidine at a neutral pH. Journal of Histochemistry & Cytochemistry 30:491-502.
Baldwin, Teale, Maessens, Goddeeris, Machuoh, Morrisson J. Immunol. 1986, 136:4385-4391.