http://books.google.com/books?vid=ISBN1852605081
810
http://citation.dbpedia.org/hash2/2221e9dad4866bb5a7eca7f65937b2026d1d8adf61a116bc22b9f21a2517b6c1
155
http://books.google.com/books?vid=ISBN9781852605087
9
CiteRank - project for automatic evaluation of the sources in Wikipedia articles.