Title: Excess conduction of YBaCuO point contacts between 100 and 200 K,
Abstract: $YBaCuO-Ag$ pressure point contacts with direct conduction are investigated.
The excess (relative to the normal state) conductivity mainly caused by
fluctuational pairing of electrons above $T_c$ is measured in the temperature
interval 100-200~$K$. The superconductivity above 120~$K$ is found to be of the
two-dimensional type. The obtained preliminary results indicate the presence of
small amount of an unknown phase with $T'_c\gtrsim 200~K$ in $YBaCuO$.