Huesges, Z., Stockert, O., Koza, M. M., Krellner, C., Geibel, C., & Steglich, F. (2013). Crystalline electric field splitting in YbNi4P2 measured by inelastic neutron scattering. Physica Status Solidi B, 250(3), 522-524. doi:10.1002/pssb.201200846.