1. BYCENKO, B., GRIN, E., MATVEEV, K. I., CVJETANOVIC, B., VORST, E. A. AND STROGANOVA, M. (1971) : The level of tetanus immunity in the population of villages in Bosnia and Herzegovina. Bull. WHO., 45, 431-443.
2. FULTHORPE, A. J. (1958) : Tetanus antitoxin titration by Haemagglutination at a low level of test. J. Hyg., 56, 183-189.
3. HARDEGREE, M. C., BARILE, M. F., PITTMAN, M., MALONEY, C. J., SCHOFIELD, F. AND MACLENNAN, R. (1970) : Immunization against neonatal tetanus in New Guinea. 4. Comparison of tetanus antitoxin titres obtained by haemagglutination and toxin neutralization in mice. Bull. WHO., 43, 461-468.
4. HERNANDEZ, R., JUST, M. AND BURGIN-WOLFF, A. (1973) : Immunoglobulin classes of human antitoxin after tetanus vaccination studied by immunofluorescence with agarose bound Tetanus toxoid. Z. Immunitats-Allergieforsch., 145, 376-384.
5. KAMEYAMA, S. AND KONDO, S. (1975) : Titration of tetanus antitoxin by passive hemagglutination. I. Titration of guinea-pig antitoxins at various periods of immunization. Japan. J. Med. Sci. Biol., 28, 127-138.