1. Primary tumours of the iris;Ashton;Brit. J. Ophth.,1964
2. Ocular lesions of juvenile xanthogranuloma;Zimmerman;Tr. Am. Acad. Ophth.,1965
3. Uveal melanomas in children and adolescents;Apt;Int. Ophth. Clin.,1962
4. Histopathologische Untersuchungen maligner Uveamelanoma;Vogel;Ber. Deutsch. Ophth. Ges.,1968
5. Medulloepithelioma of the retina;Andersen;Int. Ophth. Clin.,1962