@article{klippel filho_tutikian_oliveira_2023,  title={Experimental study on the effect of row spacing in the sound absorption capacity of PET based baffle arrangements},  volume={23},  ISSN={1678-8621},  url={https://doi.org/10.1590/s1678-86212023000400694},  DOI={10.1590/s1678-86212023000400694},  number={4},  journal={Ambiente Construído},  publisher={Associação Nacional de Tecnologia do Ambiente Construído - ANTAC},  author={Klippel Filho, Sérgio and Tutikian, Bernardo and Oliveira, Maria Fernanda de},  year={2023},  month={Oct},  pages={121–129} }