Deutscher Boxsport-Verband Julkaistu 2010 “...educational training...”
Albrecht, H., Bachmayer, T., Bessi, F., Gerling, I., Gruhl, M., Hammer, G. R., Klaesberg, S., Knoll, Kl., von Lassberg, C., Sygusch, R., Weber, R. Julkaistu 2010 “...educational training...”
F. Bessi Julkaistu 2009 “...educational training...”
Röder, H. Julkaistu 2004 “...educational training...”
Thornton, R. Julkaisussa World Clinic Series, 27 (1995) “...educational training...”
Urbanchek, J. Julkaisussa World Clinic Series, 27 (1995) “...educational training...”
Loose, D. Julkaisussa World Clinic Series, 27 (1995) “...educational training...”
Parratto, M. Julkaisussa World Clinic Series, 27 (1995) “...educational training...”