1. Adam, W. S.: Fine structure of synovial membrane: Phagocytosis of colloidal carbon from the joint cavity. Lab. Invest. 15, 680–691 (1966).
2. Aschoff, L.: Spezielle Pathologische Anatomie 4. Aufl., S. 263. Leipzig: Breitkopf und Härtel 1919.
3. Ball, J., Chapman, J. A., Muirden, K. D.: The uptake of iron in rabbit synovial tissue following intraarticular injection of iron dextran. J. Cell Biol. 22, 351–364 (1964).
4. Barland, P., Novikoff, A. B., Hamerman, D.: Electron microscopy of the human synovial membrane. J. Cell Biol. 14, 207–320 (1962).
5. Barland, P., Novikoff, A. B., Hamerman, D.: Fine structure and cytochemistry of the rheumatoid synovial membrane with special reference to lysosomes. Amer. J. Path. 44, 853–866 (1964).