T.ROUT*, S. P. R. BUCKLING OF SIGMOID TIMOSHENKO BEAM ON 2-PARAMETER VARIABLE ELASTIC FOUNDATION. International Journal of Engineering Technology and Computer Research, [S. l.], v. 4, n. 3, 2016. Disponível em: https://ijetcr.org/index.php/ijetcr/article/view/318. Acesso em: 1 aug. 2026.