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N. A. Vinnikov, A. V. Dolbin, R. M. Basnukaeva, V. G. Gavrilko, V. B. Eselson, and L. M. Buravtseva, Quantum effects in the low-temperature thermal expansion of fullerite C60 doped with a 4He impurity, Low Temp. Phys. 48, (2022) [Fiz. Nyzk. Temp. 48, 897–904, (2022)] DOI: https://doi.org/10.1063/10.0014021.