Carnoy, A. S., Girard, T. A., Deutsch, J., & Prieels, R. (1991). Limits on nonstandard weak currents from the polarization of O-14 and C-10 decay positrons. Physical Review C, Nuclear Physics, 43, 2825-2834. https://doi.org/10.1103/PhysRevC.43.2825 (Original work published 1991)