@article{ferreira_cordova de la cruz_araujo_garcia sánchez_2023,  title={Modal P-delta – simplified geometric nonlinear method by using modal and buckling analysis},  volume={16},  ISSN={1983-4195},  url={https://doi.org/10.1590/S1983-41952023000200009},  DOI={10.1590/S1983-41952023000200009},  number={2},  journal={Revista IBRACON de Estruturas e Materiais},  publisher={IBRACON - Instituto Brasileiro do Concreto},  author={Ferreira, Wagner Almeida and Cordova De La Cruz, Jeffer Roussell and Araujo, Iván Darío Gómez and Garcia Sánchez, Jesús Antonio},  year={2023},  pages={e16209} }