Reversible transitions in high - Tc cuprates based point contactsL. F. Rybaltchenko, N. L. Bobrov, V. V. Fisun, I. K. Yanson, A. G.M. Jansen and P. WyderEur. Phys. J. B, 10 3 (1999) 475-480DOI: https://doi.org/10.1007/s100510050876