1. Bagnoli, P., Brunelli, M., and Magni, F. (1972). A fast conducting pathway in the central nervous system of the leechHirudo medicinalis.Arch. Ital. Biol. 11035?51.
2. Belardetti, F., Biondi, C., Colombaioni, L., Brunelli, M. and Trevisani, A. (1982). Role of serotonin and cyclic AMP on facilitation of the fast conducting system activity in the leechHirudo m. Brain Res. (in press).
3. Bloom, F. E. (1975). The role of cyclic nucleotides in central synaptic function.Rev. Physiol. Biochem. Pharmacol. 741?103.
4. Bloom, F. E., Siggins, G. R., Haffer, B. J., Segal, M., and Oliver, A. P. (1975). Cyclic nucleotides in the central synaptic actions of catecholamines.Adv. Cyclic Nucleotide Res. 8603?618.
5. Brown, B. L., Ekins, R. P., and Albano, J. D. M. (1972). Saturation assay for cyclic AMP using endogenous binding protein.Adv. Cyclic Nucleotide Res. 225?40.