Joubert, Annie M.; Marais, Sumari; Maritz, Christine(Centro Regional de Investigaciones Cientificas Y Tecnologicas / Universidad Nacional de Cuyo, 2009-02)
Du Toit, Peet J.; Kruger, P.E. (Pieter Ernst); Chamane, N.Z.; Campher, Jolene; Crafford, Dalene(Africa Association for Health, Physical Education, Recreation, Sport and Dance, 2009-12)