Kaufmann, S. H. E., Ladel, C. H., & Flesch, I. E. A. (1995). T cells and cytokines in intracellular bacterial infections: Experiences with Mycobacterium bovis BCG. In D., Chadwick, & G., Carew (Eds.), T cell subsets in infectious and autoimmune diseases (pp. 123-132). Chichester [u.a.]: Wiley.