http://www.laurent.es/book/ 2009-08-04 monthly 1.0 http://www.laurent.es/book/index.php 2009-08-04 monthly 1.0 http://www.laurent.es/book/page_001.php 2009-08-04 monthly 0.9 http://www.laurent.es/book/page_002.php 2009-08-04 monthly 0.8