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Georgiy K. Ozerov, Dmitry S. Bezrukov, and Alexei A. Buchachenko, Computational study of the stable atomic trapping sites in Ar lattice, Low Temp. Phys. 45, (2019) [Fiz. Nizk. Temp. 45, 347-355, (2019)] DOI: https://doi.org/10.1063/1.5090045.