http://pc.h12o.es/cgi-bin/koha/opac-search.pl?idx=an%2Cphr&q=656%26limit%3Dau%3APonce%20Alfaro%2C%20Guillermo&format=rss2 Search results for 'an,phr: 656&limit=au:Ponce Alfaro, Guillermo' at 0 20