bibliography in french sauce agosto 19, 2012 Ref d o c.fr "Over 53 million records of articles, books, reports and conference proceedings in the fields of Science, Technology, Medicine, Humanities and Social Sciences, from 1823 up to the present day (with daily updates)" link Continua a leggere
Lost in Google Books? agosto 13, 2012 No longer available on Google Books? See in Internet Archive http://archive.org/index.php Continua a leggere