@article{cecopieri-gómez_palacios-alquisira_2005,  title={Interaction parameter (chi); expansion factor (epsilon); steric hindrance factor (sigma); and shielding function F(xi); for the system PEA-organic solvents by intrinsic viscosity measurements},  volume={16},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532005000300017},  DOI={10.1590/S0103-50532005000300017},  number={3a},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Cecopieri-Gómez, Martha L. and Palacios-Alquisira, Joaquín},  year={2005},  month={May},  pages={426–433} }