(1)
Edwards, S.; Sherwood, P.; Naidoo, N.; Geils, C.; Van Heerden, K.; Thwala, J.; Davidson, D.; Edwards, D. Investigation into Breath Meditation: Phenomenological, Neurophysiologic, Psychotherapeutic and Sport Psychological Implications. Af. J. Phys Activity and Health Sci. 2013, 19, 394-418.