select paper.paper_id,paper_name, paper_http from paper ,region_master,category_master,language_master,country_master,category where category_master.category_id=category.category_id and category.paper_id=paper.paper_id
					and category_master.category='Scientific' and region_master.region_id=country_master.region_id and paper.country_id=country_master.country_id and region_master.region='South America' and language_master.language_id=paper.language_id and language_master.language='Spanish' group by paper_name order by paper_name