<![CDATA[Biblioteca Jorge Álvarez Lleras Search for 'su:"CONCRETO" and location:GEN and su-to:CONCRETO REFORZADO and au:Elsener, Bernhard']]> https://catalogo.escuelaing.edu.co/cgi-bin/koha/opac-search.pl?q=ccl=su%3A%22CONCRETO%22%20and%20location%3AGEN%20and%20su-to%3ACONCRETO%20REFORZADO%20and%20au%3AElsener%2C%20Bernhard&format=rss2 2 0 50