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@@ -41,6 +41,8 @@
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<!ENTITY ietf "<ulink url='http://www.ietf.org'>IETF</ulink>">
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<!ENTITY im "<acronym>IM</acronym>">
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<!ENTITY smtp "<acronym>SMTP</acronym>">
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+<!ENTITY gnu "<ulink url='http://www.gnu.org'>GNU</ulink>">
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+<!ENTITY gpl "<ulink url='http://www.gnu.org/licenses/licenses.html#GPL'>GPL</ulink>">
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<!-- Often used RFCs -->
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Jan Janak