\bibitem{Evertsz91}     C.J.G.Evertsz, P.W.Jones, B.B.Mandelbrot   \hskip 2mm
                        {\it Behaviour of the Harmonic Measure at the Bottom of Fjords},
                        J.Phys. A: Math.Gen. {\bf 24}, 1889-1901, 1991.