http://matthew.reidsrow.com/articles/173 This long article is worth reading. It shows how algorithms used behind search engines relied upon by librarians (Proquest etc) are biased and results could be misleading. Honestly I did not understand much of it, but I feel biased indexers are playing mischief. Dr P Vyasamoorthy Secretary General - Indian Society of U3As 30 Gruhalakshmi Colony, Secunderabad 500015 Telangana LL 040-27846631 / Mobile: 9490804278 The idea that women are inferior to men is absurd. When a man is born of a woman, how can he be superior and she inferior. [Sadhguru Jaggi Vasudev] -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.