http://3313.bepe.ar/cgi-bin/koha/opac-search.pl?q=ccl=au%3AAyala%20Gauna%2C%20Velmiro%20and%20available&format=rss2 Search results for 'au:Ayala Gauna, Velmiro and available' at Biblioteca Central de la Provincia de Buenos Aires 0 20