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V. Gnezdilov, K.-Y. Choi, Yu. Pashkevich, P. Lemmens, S. Shiryaev, G. Bychkov, S. Barilo, V. Fomin, and A.V. Yeremenko, Low temperature mixed spin state of Co3+ in LaCoO3 evidenced from Jahn-Teller lattice distortions, Low Temp. Phys. 32, (2005) [Fiz. Nizk. Temp. 32, 219-226, (2005)] DOI: https://doi.org/10.1063/1.2171521.