Bondorf, L., Beutel, M., Thiemann, M., Dressel, M., Bothner, D., Sichelschmidt, J., et al. (2018). Angle-dependent electron spin resonance of YbRh2Si2 measured with planar microwave resonators and in-situ rotation. Physica B-Condensed Matter, 536, 331-334. doi:10.1016/j.physb.2017.10.046.