Boson peak and anharmonicity
1998 Vibration anharmonicity and fast relaxation in the region of the glass transition V. N. Novikov
2002 Anharmonic Interactions and the Low-Temperature Thermal Anomalies in Glasses W. Schirmacher1), M. Po¨hlmann, and E. Maurer
2020 Sound damping in glasses: Interplay between anharmonicities and elastic heterogeneities Hideyuki Mizuno,Giancarlo Ruocco, and Stefano Mossa
Anharmonicity - tutorial
Lecture 9 — Anharmonic effects in crystals
Lattice dynamics - anharmonic effects
https://thesis.library.caltech.edu/10726/1/kim_dennis_2018_thesis.pdf