1. Delmarcelle Y, Francois J, Goes F, Collignon-Brach J, Luyckx-Bacus J, Verbraeken H. 1976. Biometrie Oculaire Clinique. Masson, Paris, pp. 280–82.
2. Fledelius HC. 1976. Prematurity and the eye (thesis). Acta Ophthalmol (Copenh). Suppl 128.
3. Fledelius HC. 1979. Oculometry in high myopia in a representative sample of young adults aged 24. In: H Gernet (ed) Diagnostic Ultrasonography in Ophthalmology. Remy, Münster, pp. 195–197.
4. Goldschmidt E. 1968. On the etiology of myopia (thesis). Acta Ophthalmol (Copenh), Suppl 98.
5. Goldschmidt E, Fledelius HC, Erlin Larsen F. 1981. Clinical features in high myopia, A 10-year follow-up. In: JM Thijssen and AM Verbeek (eds), Ultrasonography in Ophthalmology, Doc Ophthal Proc Series, Vol. 28, Junk, The Hague, pp. 233–44.