On $T$ dependence of the static potential $V(T;{\vec R})$ in a finite   volume
  We study the dependence on $T$ of the static potential $V(T;{\vec R})$ defined from Wilson loops and from Polyakov loop correlators on a finite lattice. For this study we employ a simple model with confinement, and compare with MC results. 
G.~Cella, V.K.~Mitrjushkin and A.~Vicer\'e