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<![CDATA[Biblioteca Univ. Surcolombiana Search for 'au:"PÃ©rez Ortiz, Volmar Antonio" and au:PÃ©rez Ortiz, Volmar Antonio']]> https://biblioteca.usco.edu.co//cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22P%C3%83%C2%A9rez%20Ortiz%2C%20Volmar%20Antonio%22%20and%20au%3AP%C3%83%C2%A9rez%20Ortiz%2C%20Volmar%20Antonio&format=rss2 0 20