Two superconducting states of HoNi2B2C as seen by Andreev reflection in point-contactsL. F. Rybaltchenko, I. K. Yanson, A. G. M. Jansen, P. Mandal, P. Wyder, C. V. Tomy and D. McK. PaulEurophys. Lett., 33 6 (1996) 483-488DOI: https://doi.org/10.1209/epl/i1996-00367-8
