Glassman, B. E., Pérez-Loureiro, D., Wrede, C., Allen, J., Bardayan, D. W., Bennett, M. B., Chipps, K. A., et al. (2019). Doppler broadening in Mg 20 ($\beta$ p $\gamma$) Ne 19 decay up²⁰ down₁₀β. Physical Review C, 99(6), 065801. American Physical Society.