Tunneling spectroscopy of layered superconductors: intercalated Li0.48(C4H8O)xHfNCl and De-intercalated HfNCl0.7T. Takasaki, T. Ekino, A. Sugimoto, K. Shohara, S. Yamanaka and A. M. GabovichEur. Phys. J. B, 73 4 (2010) 471-482DOI: https://doi.org/10.1140/epjb/e2010-00035-4