http://catalogo.umet.edu.ar/cgi-bin/koha/opac-search.pl?q=ccl=an%3A7879%20_dsc%20and%20au%3ACastro%20Lechtaler%2C%20Antonio%20Ricardo&format=rss2 Search results for 'an:7879 _dsc and au:Castro Lechtaler, Antonio Ricardo' at Catalogo de las Biblioteca UMET - ISO y CITRA (CONICET) 0 20