1. Friedemann, U., Z. Hyg.110, 144 (1929).
2. Mackenzie, G. M., J. of exper. Med.41, 53 (1925).
3. Arloing, F., L. Thévenot u.L. Langeron, C. r. Soc. Biol. Paris84, 977 (1921).
4. Besredka, A., Immunisation locale. Paris: Masson et Comp. 1925.
5. Friedberger u.Oshikawa, Z. Immun.forschg33, 305 (1922).