A.N. Aleksandrovskii, B. Sundqvist, S. Moricca, V.G. Manzhelii, V.G. Gavrilko, G.E. Gadd, V.B. Esel`son, A.V. Dolbin, A.S. Bakai, and B.G. Udovidchenko, Low-temperature thermal expansion of pure and inert gas-doped fullerite C₆₀, Low Temp. Phys. 29, (2003) [Fiz. Nizk. Temp. 29, 432-442, (2003)] DOI: https://doi.org/10.1063/1.1542477.