1. Electron microscopy of a malignant melanoma of the choroid;Bierring;Acta ophthal. (Kbh.),1963
2. Electron microscopy of melanomas of the human uveal tract: The ultrastructure of four malignant melanomas of the mixed cell type;Bierring;Acta ophthal. (Kbh.),1964
3. The ultrastructure of malignant melanomas of the human uvea;Bierring;Ophthalmologica. Add. ad. vol.,1966
4. Malignant melanotic tumors of the eye: A study of histologic types in 111 cases;Callender;Trans. Amer. Acad. Ophthal. Otolaryng.,1931
5. Deposits of granular material in mitochondria. Electron microscopic observations in neoplastic cells of a malignant melanoma of the human uveal tract;Egeberg;Virchows Arch. Abt. B Zellpath.,1970