Approximation on the limit continuous of a degenerate Kleinian group

Let $\Gamma$ be a degenerate Kleinian group with the limit continuum $K$. It is stated that the linear combinations of the fractions $\frac1{\zeta-T(a_j)}$, $j=1,\dots,n(\Gamma)$ are dense in $C(K)$ and $\lambda^\alpha(K)$. Bibliography: 6 titles.