Andreev bound states in high temperature superconductorsL. Alff, S. Kleefisch, U. Schoop, M. Zittartz, T. Kemen, T. Bauch, A. Marx and R. GrossEur. Phys. J. B, 5 3 (1998) 423-438DOI: https://doi.org/10.1007/s100510050463