1. Observations on cell differentiation in sponges;Agrell;Arkiv Zool,1951
2. Cell mixtures of different species and strains of cellular slime moulds;Bonner;J. Embryol. Exptl. Morphol,1958
3. Explorations into the Nature of the Living Cell;Chambers,1961
4. Electron microscopy of liver perfused with a chelating agent;Coman;Cancer Res,1954
5. Cell contacts: some physical considerations;Curtis;Am. Naturalist,1960