1. The sheath of the optic nerve;Hayreh;Ophthalmologica,1984
2. Echographic differential diagnosis of optic-nerve lesions;Ossoinig,1981
3. Standardized A-scan echography in optic nerve disease;Gans;Arch Ophthalmol,1987
4. Standardized echography of the optic nerve. Jules Frangois Memorial Lecture;Ossoinig,1993
5. Ultrasonography of the optic nerve;Skalka,1977