books.google.com.br - This book constitutes the refereed proceedings of the 20th International Conference on Database and Expert Systems Applications, DEXA 2009, held in Linz, Austria, in August/September 2009. The 35 revised full papers and 35 short papers presented were carefully reviewed and selected from 202 submissions....http://books.google.com.br/books/about/Database_and_Expert_Systems_Applications.html?hl=pt-BR&id=JddwH_b_QdAC&utm_source=gb-gplus-shareDatabase and Expert Systems Applications
