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V.N. Krivoruchko, A.I. D’yachenko, and V.Yu. Tarenkov, Point-contact Andreev-reflection spectroscopy of doped manganites: Charge carrier spin-polarization and proximity effects (Review Article), Low Temp. Phys. 39, (2013) [Fiz. Nizk. Temp. 39, 276-292, (2013)] DOI: https://doi.org/10.1063/1.4795172.