1. Arnason, B. G., andB. H. Waksman: Tuberculin-sensitivity. Immunologic considerations. Fortschr. Tuberk.-Forsch.13, 2–97 (1964).
2. Boyden, S. V., andE. Sorkin: The adsorption of antigens by spleen cells previously treated with antiserum in vitro. Immunology3, 272 (1960).
3. Elberg, S. S.: Cellular immunity. Bact. Rev.24, 67 (1960).
4. Geigy, R.: Documenta Geigy, Wissenschaftliche Tabellen, S. 25 ff. Basel 1955.
5. Herrlich, A.: Handbuch der Schutzimpfungen. Berlin, Heidelberg, New York: Springer 1965.