1. [Research on the morphological system of the amphibian eyelid];Maggiore,1912
2. [Basic Dacryology];Murube,1981
3. Murube J. [Dry eye]. Madrid, Edit Soc Españ Oftalmol, 1997. In Spanish
4. System of ophthalmology, vol I. The eye in evolution;Duke-Elder,1958
5. [Brain and sympathicus, I/II/III]. Pflügers;Karplus;Arch Physiol,1909