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-            <a href="http://django-mantis.readthedocs.org/en/latest/" target="_blank">MANTIS</a>
+            <a href="http://django-mantis.readthedocs.io/en/latest/" target="_blank">MANTIS</a>
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             The Model-based Analysis of Threat Intelligence Sources (MANTIS) Cyber Threat Intelligence Management Framework supports the management of cyber threat intelligence expressed in various standard languages, like STIX and CybOX. It is *not* ready for large-scale production though.