1. Electron microscopic identification of different cell types in the islets of Langerhans of the guinea pig, rat, rabbit and dog;Lacy;Anat. Rec.,1957
2. Electron microscopy of the normal islets of Langerhans;Lacy;Diabetes,1957
3. L'ultrastructure des cellules du pancreas endocrine chez l'embryon et le rat nouveauné;Ferreira;J. Ultrastructure Res.,1957
4. Estudo ao microscopica electronica das cellulas beta do pancreas endocrino do rato;Ferreira;Gaz. med. Port.,1958
5. Electronenmikroskopische Untersuchungen an den Langerhans'-schen Inseln der Ratte;Stoeckenius;Endokrinologie,1958