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N.N. Galtsov, A.I. Prokhvatilov, G.N. Shcherbakov, and M.A. Strzhemechny, Properties of solid hydrogen doped by heavy atomic and molecular impurities: Low-Temperature Thermodynamics and Structure, Low Temp. Phys. 29, (2003) [Fiz. Nizk. Temp. 29, 1036-1040, (2003)] DOI: https://doi.org/10.1063/1.1614192.