1. On the metachromasia of the cornea with special reference to the question of the causes of transparency;Aurell;(in Swedish) Hygieae,1945
2. Histochemical and immunohistochemical studies on keratan sulfate in the anterior segment of the developing human eye;Azuma;Exp. Eye Res.,1994
3. Embryology of the Eye and Its Adnexa;Barishak,2001
4. Cell lineage and the differentiation of corneal epithelial cells;Beebe;Invest. Ophthalmol. Vis. Res.,1996
5. The transparency of the corneal tissue;Caspersson;(in Swedish) Hygieae,1945