1. von Behring E, Wernick K. Über Immunisierung und Heilung von Versuchstieren bei der Diphterie. Z Hyg Infektionskrankheit. 1892; 12: 10–44.
2. Smith T. Active immunity produced by so-called balanced or neutral mixtures of diphtheria toxin and antitoxin. J Exp Med. 1909; 11: 241–60.
3. Henry C, Jerne NK. Competition of 19S and 7S antigen receptors in the regulation of the primary immune response. J Exp Med. 1968; 128: 133–52.
4. Shek PN, Dubiski S. Allotypic suppression in rabbits:competition for target cell receptors between isologous and heterologous antibody and between native antibody and antibody fragments. J Immunol. 1975; 114: 621–8.
5. Kohler H, Richardson BC, Smyk S. Immune response to phosphorylcholine. IV. Comparison of homologous and isologous anti-idiotypic antibody. J Immunol. 1978; 120: 233–8.