http://koha.unicoc.edu.co/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Penagos%20Vargas%2C%20Gustavo%22%20and%20available&format=rss2 Search results for 'au:"Penagos Vargas, Gustavo" and available' at SIBU - SISTEMAS DE BIBLIOTECAS UNICOC 0 20