https://catalogo.idpc.gov.co/cgi-bin/koha/opac-search.pl?q=ccl=au%3AT%C3%83%C2%A9llez%2C%20Germ%C3%83%C2%A1n%2C%20&format=rss2 Search results for 'au:Téllez, Germán, ' at 0 20