A. Feher, S.A. Egupov, and A.G. Shkorbatov, Quantum phonon transport in 3D metal-dielectric point polycontacts with strong lattice distortions, Low Temp. Phys. 33, (2007) [Fiz. Nizk. Temp. 33, 1132-1135, (2007)] DOI: https://doi.org/10.1063/1.2746863.