Photoelastic and finite element stress analysis of the GAP between the L4 and L5 vertbrae - Fakhouri, Sarah Fakher; Novais-Shimano, Suraya Gomes; Shimano, Marcos Massao; Defino, Helton Luiz Aparecido; Araújo, Cleudmar Amaral; Shimano, Antonio Carlos (ISRN Mechanical Engineering, 2011)