N. Van Hung and N. Cong Toan, “Correlated and Uncorrelated Debye–Waller Factors and Correlation Function in Atomic Vibrations Including Many-Body Effects”, Acta Phys. Pol. A, vol. 146, no. 1, p. 95, Aug. 2024, doi: 10.12693/APhysPolA.146.95.