1. Bernard, W., and N. Grandboulan: In: Ciba Pound. Symposium on cellular aspects of immunity, p. 92. London: Churchill 1960.
2. Bessis, M. C.: Ultrastructure of lymphoid and plasma cells in relation to globulin and antibody formation. Lab. Invest. 10, 1040?1067 (1961).
3. Braunsteiner, H.: In: The physiology and pathology of leukocytes. p. 117?118. New York and London: Grune & Stratton, 1962.
4. , K. Fellinger, and F. Pakesch: Demonstration of a cytoplasmic structure in plasma cells. Blood 8, 916?922 (1953).
5. Congdon, C. C., and T. Makinodan: Splenic white pulp alteration after antigen injection; relation to time of serum antibody production. Amer. J. Path. 39, 697?709 (1961).