Petronilo, G. X. A., S. C. Ulhoa, and A. E. Santana. ‚ÄúSymplectic Field Theory of the Galilean Covariant Scalar and Spinor Representations‚ÄĚ. Ukrainian Journal of Physics 64, no. 8 (September 18, 2019): 719. Accessed October 25, 2021. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019421.