Availability to updated data till the year 2003 referred to the scientific production is registered in bibliographic databases of international coverage. The information was done by the RICYT coordination based on searching strategies developed together with the Scientific Information and Documentation Center (CINDOC) of Spain and through the services provided by Dialog Corp in Argentina. The new data belong to the following data bases: Science Citation Index (SCI Search) , Pascal , INSPEC, Compendex, Chemical Abstracts, Biosis, Medline, Cab Internacional.