diff --git a/proxy-isti.pac b/proxy-isti.pac
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+++ b/proxy-isti.pac
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+const site_vector = [
+    /* IEEE */ "https://ieeexplore.ieee.org/*",
+    /* ACM */ "https://dl.acm.org/*",
+    /* SPRINGER */ "https://link.springer.com/*",
+    /* SCIENCE_DIRECT */ "https://www.sciencedirect.com/*",
+    /* WEB_OF_SCIENCE */ "https://www.webofknowledge.com/*",
+    /* WILEY */ "https://onlinelibrary.wiley.com/*",
+    /* NATURE */ "https://www.nature.com/*",
+    /* SAGE */ "https://journals.sagepub.com/*",
+    /* TAYLOR_FRANCIS */ "https://www.tandfonline.com/*",
+    /* MDPI */ "https://www.mdpi.com/*",
+    /* FRONTIERS */ "https://www.frontiersin.org/*",
+    /* MATH SCI NET */ "https://mathscinet.ams.org/*",
+    /* REAXYS */ "https://www.reaxys.com/*",
+    /* OXFORD */ "https://academic.oup.com/*",
+    /* PNAS */ "https://www.pnas.org/*",
+    /* CAMBRIDGE */ "https://www.cambridge.org/*",
+    /* IOP */ "https://iopscience.iop.org/*",
+    /* IOS */ "https://content.iospress.org/*",
+    /* JSTOR */ "https://www.jstor.org/*",
+    /* RSC */ "https://pubs.rsc.org/*",
+    /* CHEM SPIDER */ "https://www.chemspider.com/*",
+    /* CLARIVATE */ "https://jcr.clarivate.com/*",
+    /* CLARIVATE ENDNOTE */ "https://www.myendnoteweb.com/*",
+    /* SCIENTIFIC NET */ "https://www.scientific.net/*",
+    /* AIP */ "https://aip.scitation.org/*",
+    /* APS */ "https://journals.aps.org/*",
+    /* PUBMED */ "https://pubmed.ncbi.nlm.nih.gov/*",
+    /* SCIENCEMAG */ "https://www.sciencemag.org/*",
+    /* SIAM */ "https://epubs.siam.org/*",
+    /* AMERICAN_CHEMICAL */ "https://pubs.acs.org/*",
+    /* AMERICAN_PHYSICAL */ "https://journals.aps.org/*",
+    /* AMERICAN_PHYSICS */ "https://www.scitation.org/*",
+    /* AMERICAN_SOCIETY */ "https://www.asme.org/*",
+    /* AMERICAN_INSTITUTE */ "https://www.aiaa.org/*",
+    /* AMERICAN_MATHEMATICAL */ "https://www.ams.org/*",
+    /* AMERICAN_METEO */ "https://journals.ametsoc.org/*",
+    /* AMERICAN_GEOPHYSICAL */ "https://www.agu.org/*",
+    /* ANNUAL_REVIEWS */ "https://www.annualreviews.org/*",
+    /* RIVISTE WEB */ "https://www.rivisteweb.it/*",
+    /* DARWIN BOOKS */ "https://www.darwinbooks.it/*",
+]; 
+
+function FindProxyForURL(url, host) {
+    // Check if the requested URL is a paper repo
+    for (var i = 0; i < site_vector.length; i++) {
+        if (shExpMatch(url, site_vector[i])) {
+            return "PROXY vpn-proxy.isti.cnr.it:3128";
+        }
+    }
+
+    // Default to direct connection for all other URLs
+    return "DIRECT";
+}