https://biblioteca.cita-aragon.es/cgi-bin/koha/opac-search.pl?q=ccl=au%3AAlvarez%20Alvarez%2C%20Jos%C3%83%C2%A9%20M%C3%82%C2%AA&format=rss2 Search results for 'au:Alvarez Alvarez, José Mª' at 0 20