@article{almada_2026,  title={O gesto Waldstein e o Espaço Tetrádico},  volume={14},  ISSN={2317-9937},  url={https://doi.org/10.33871/vortex.2026.14.11073},  DOI={10.33871/vortex.2026.14.11073},  journal={Revista Vórtex},  publisher={Universidade Estadual do Paraná (Unespar)},  author={Almada, Carlos},  year={2026},  pages={e11073} }