KARKAUSKAS, Romanas; POPOV, Michail. Composition feature of the element tangent stiffness matrix of geometrically nonlinear 2D frame structures. Mokslas – Lietuvos ateitis / Science – Future of Lithuania, [S. l.], v. 1, n. 5, p. 45–49, 2011. DOI: 10.3846/mla.2009.5.09. Disponível em: https://journals.vilniustech.lt/index.php/MLA/article/view/10654. Acesso em: 9 may. 2025.