1. Beiträge zur Physiologie der Zirberdrüse;W. Kolmer;Pflügers Archiv ges. Physiol.,1922
2. 10. Korf, H. W. (1996) Innervation of the pineal gland. In: Burnstock, G. (ed.) The Autonomic Nervous System. Vol. 10, Unsicker, K. (ed.) Autonomic - Endocrine Interactions. Harwood Academic Publishers, Amsterdam, 129-180.
3. Synaptic junctions between sympathetic axon terminals and pinealocytes in the monkey;E. Ling;Macaca fascicularis. Anat. Embryol,1990
4. Innervation of the rat pineal gland by PACAP-immunoreactive fibers originating in the trigeminal ganglion: a degeneration study;W. Liu;Cell Tissue. Res.,2000
5. Peptidergic peripheral nervous systems in the mammalian pineal gland;S. Matsushima;Micr. Res. Techn.,1999