http://catalogo.umet.edu.ar/cgi-bin/koha/opac-search.pl?q=ccl=an%3A3439%20_dsc%20and%20au%3AHang%2C%20Guillermo%20Horacio&format=rss2 Search results for 'an:3439 _dsc and au:Hang, Guillermo Horacio' at Catalogo de las Biblioteca UMET - ISO y CITRA (CONICET) 0 20