Bibliografia

1. Daniels K, Thornton EW. An analysis of the relationship between hostility and training in the martial arts. Br J Sport Med 1992; 26: 118-20.

2. Zetaruk MN, Zurakowsky D, Violan MA, Micheli LJ. Safety recommendations in Shotokan karate. Clin J Sport Med 2000; 10: 117-22.