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<referencetext xmlns="http://eprints.org/ep2/data/2.0">[1] Gruppo di discussione AIB-CUR (da AIB-WEB), &lt;http://www.aib.it/aib/aibcur/aibcur.htm3&gt;.
[2] &lt;http://acnp.cib.unibo.it/cgi-ser/start/it/cnr/fp.html&gt;.
[3] &lt;http://opac.sbn.it/cgi-bin/IccuForm.pl?form=WebFrame&gt;.
[4] &lt;http://www.aib.it/aib/opac/mai.htm&gt;.
[5] http://sunsite.berkeley.edu/SICI/version2.html.</referencetext>
