Battaglia, C. D'Artibale, E. Fiorilli, G. Piazza, M. Tsopani, D. Giombini, A. Calcagno, G. di Cagno, A., Use of video observation and motor imagery on jumping performance in national rhythmic gymnastics athletes, Human movement science, (38), 225-234, 2014, Elsevier B.V., 0167-9457