Arias, S., P. Rogeli, E. Cardiel, H. Sanada, T. Mori, H. Noguchi, G. Nakagami, and L. Garay. “Assessment of Three Alternating Pressure Sequences Applied to a Dynamic Cushion to Relieve Pressure on Seating Areas”. Revista Mexicana De Ingenieria Biomedica, vol. 35, no. 3, Sept. 2014, pp. 253-62, http://rmib.com.mx/index.php/rmib/article/view/195.