http://biblioteca1.aunar.edu.co/cgi-bin/koha/opac-search.pl?q=ccl=su-na%3Dau%3A%22Lopera%20Guti%C3%A9rrez%2C%20Jaime%2Cy%20Bernal%20Trujillo%2C%20Marta.%22&format=rss2 Search results for 'su-na=au:"Lopera Gutiérrez, Jaime,y Bernal Trujillo, Marta."' at Biblioteca Zambrano Bucheli AUNAR 0 20