Hiess, A., Schneidewind, A., Stockert, O., & Fisk, Z. (2014). Signature of superconductivity in UBe13 as seen by neutron scattering: Superconducting and magnetic energy scales. Physical Review B, 89(23): 235118, pp. 1-7. doi:10.1103/PhysRevB.89.235118.