http://books.google.com/books?vid=ISBN9781845966010
602
http://citation.dbpedia.org/hash2/e80f0b57c8c11b80111dfea03e97b9111c023835f8533692d6891bdac2ee1a23
3
http://books.google.com/books?vid=ISBN9781845964740
1
CiteRank - project for automatic evaluation of the sources in Wikipedia articles.