http://biblioteca.iunir.edu.ar/cgi-bin/koha/opac-search.pl?q=ccl=an%3A489%20and%20au%3ADuderstadt%2C%20James%20J.%20and%20available&format=rss2 Search results for 'an:489 and au:Duderstadt, James J. and available' at OPAC - IUNIR 0 20