http://catalogo.umet.edu.ar/cgi-bin/koha/opac-search.pl?q=ccl=an%3A%223317%22%20_dsc%20and%20au%3ADieterich%20Steffan%2C%20Heins&format=rss2 Search results for 'an:"3317" _dsc and au:Dieterich Steffan, Heins' at Catalogo de las Biblioteca UMET - ISO y CITRA (CONICET) 0 20