Nies, M., Mireles, I., Bouchy, F., Dragomir, D., Nicholson, B. A., Eisner, N. L., …Ricker, G. R. (in press). HD 21520 b: a warm sub-Neptune transiting a bright G dwarf. Monthly Notices of the Royal Astronomical Society, https://doi.org/10.1093/mnras/stae2079