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E. Tartaglini, T.G.A. Verhagen, F. Galli, M.L. Trouwborst, R. Müller, T. Shiota, J. Aarts, and J.M. van Ruitenbeek, New directions in point-contact spectroscopy based on scanning tunneling microscopy techniques (Review Article), Low Temp. Phys. 39, (2013) [Fiz. Nizk. Temp. 39, 249-260, (2013)] DOI: https://doi.org/10.1063/1.4795171.