Ilya Kapovich, Nadia Benakli: Boundaries of hyperbolic groups. In: Sean Cleary, Robert Gilman, Alexei G. Myasnikov, Vladimir Shpilrain (Hrsg.): Combinatorial and geometric group theory. AMS Special Session Combinatorial Group Theory, November 4–5, 2000, New York, New York. AMS Special Session Computational Group Theory, April 28–29, 2001, Hoboken, New Jersey (= Contemporary Mathematics. Bd. 296). American Mathematical Society, Providence RI 2002, ISBN 0-8218-2822-3, S. 39–93, Digitalisat (PDF; 488 kB).