1. L. Struik, Physical Aging in Polymers and Other Amorphous Materials (Elsevier, Amsterdam, 1978)
2. A. Kovacs, Glass transition in amorphous polymers: a phenomenological study. Adv. Polym. Sci 3, 394–508 (1963)
3. A. Cavagna, Supercooled liquids for pedestrians. Phys. Rep. 476, 51–124 (2009). doi: 10.1016/j.physrep.2009.03.003
4. L.F. Cugliandolo, in Slow Relaxations and Nonequilibrium Dynamics in Condensed Matter (Springer, 2003), pp. 367–521
5. A.Q. Tool, Relation between inelastic deformability and thermal expansion of glass in its annealing range. J. Am. Ceram. Soc. 29, 240–253 (1946)