http://biblioteca.iunir.edu.ar/cgi-bin/koha/opac-search.pl?q=ccl=pb%3AOmega%20and%20au%3ANelson%2C%20David%20L.%20and%20available&format=rss2 Search results for 'pb:Omega and au:Nelson, David L. and available' at OPAC - IUNIR 0 20