Enßlin, T. A., Hutschenreuter, S., Vacca, V., & Oppermann, N. (2017). The Galaxy in circular polarization: All-sky radio prediction, detection strategy, and the charge of the leptonic cosmic rays. Physical Review D, 96(4): 043021, pp. 1-11. doi:10.1103/PhysRevD.96.043021.