diff --git a/global-parameters.xml b/global-parameters.xml
index 1f73371..526a646 100644
--- a/global-parameters.xml
+++ b/global-parameters.xml
@@ -82,10 +82,35 @@
     <value>zotero</value> <!--looks at the api and renders the html from there-->
   </parameter>
   
+  <parameter> <!--base directory for authority files. Defaults to {user.dir}/webapps/ROOT/content/xml/authority/ in EFES if not set.-->
+    <name>authority-dir</name>
+    <value/>
+  </parameter>
+
   <parameter> <!--path to local TEI XML bibliography if this is the bibliography used-->
     <name>localbibl</name>
     <value>../BIBLIOGRAPHY.xml</value>
   </parameter>
+
+  <parameter> <!--path to symbols authority file. Defaults to {authority-dir}/symbols.xml if not set.-->
+    <name>symbols-file</name>
+    <value/>
+  </parameter>
+
+  <parameter> <!--path to places authority file. Defaults to {authority-dir}/places.xml if not set.-->
+    <name>places-file</name>
+    <value/>
+  </parameter>
+
+  <parameter> <!--path to institution authority file. Defaults to {authority-dir}/institution.xml if not set.-->
+    <name>institutions-file</name>
+    <value/>
+  </parameter>
+
+  <parameter> <!--URL template for bibliography links. $1 is replaced by the entry ID.-->
+    <name>bib-link-template</name>
+    <value>../concordance/bibliography/$1.html</value>
+  </parameter>
   
   <parameter> if the zotero bibliography is used, select whether it is a group library or a user's library
     <name>ZoteroUorG</name>
diff --git a/global-varsandparams.xsl b/global-varsandparams.xsl
index 94085ae..8c6f030 100644
--- a/global-varsandparams.xsl
+++ b/global-varsandparams.xsl
@@ -38,9 +38,28 @@
                         select="document($param-file)//parameter[name = 'js-dir']/value"/>
             <xsl:param name="bibliography"
                         select="document($param-file)//parameter[name = 'bibliography']/value[@on = 'yes']"/>
+
+            <!-- Base directory for authority files. Override to point at a different location. -->
+            <xsl:variable name="raw-authority-dir"
+                        select="(document($param-file)//parameter[name = 'authority-dir']/value[. != ''], concat('file:',system-property('user.dir'),'/webapps/ROOT/content/xml/authority/'))[1]"/>
+            <xsl:param name="authority-dir"
+                        select="if (ends-with($raw-authority-dir, '/')) then $raw-authority-dir else concat($raw-authority-dir, '/')"/>
+            <!-- Individual authority file paths. Default to authority-dir + filename.
+                 Can be overridden individually via global-parameters.xml or as stylesheet params. -->
             <xsl:param name="localbibl"
-                        select="document($param-file)//parameter[name = 'localbibl']/value"/>
-            <xsl:param name="ZoteroUorG" 
+                        select="(document($param-file)//parameter[name = 'localbibl']/value[. != ''], concat($authority-dir, 'bibliography.xml'))[1]"/>
+            <xsl:param name="symbols-file"
+                        select="(document($param-file)//parameter[name = 'symbols-file']/value[. != ''], concat($authority-dir, 'symbols.xml'))[1]"/>
+            <xsl:param name="places-file"
+                        select="(document($param-file)//parameter[name = 'places-file']/value[. != ''], concat($authority-dir, 'places.xml'))[1]"/>
+            <xsl:param name="institutions-file"
+                        select="(document($param-file)//parameter[name = 'institutions-file']/value[. != ''], concat($authority-dir, 'institution.xml'))[1]"/>
+
+            <!-- URL template for bibliography links. $1 is replaced by the bibliography entry ID. -->
+            <xsl:param name="bib-link-template"
+                        select="(document($param-file)//parameter[name = 'bib-link-template']/value[. != ''], '../concordance/bibliography/$1.html')[1]"/>
+
+            <xsl:param name="ZoteroUorG"
                         select="document($param-file)//parameter[name = 'ZoteroUorG']/value[@on = 'yes']"/>
             <xsl:param name="ZoteroKey"
                         select="document($param-file)//parameter[name = 'ZoteroKey']/value[@on = 'yes']"/>
diff --git a/htm-teibibl.xsl b/htm-teibibl.xsl
index c2639f4..f72bf2a 100644
--- a/htm-teibibl.xsl
+++ b/htm-teibibl.xsl
@@ -274,16 +274,16 @@ bibliography. All examples only cater for book and article.
 	<xsl:template match="t:ptr[@target]">
 		<xsl:param name="parm-edn-structure" tunnel="yes" required="no"/>
 		<xsl:param name="parm-leiden-style" tunnel="yes" required="no"/>
+		<xsl:param name="parm-bibloc" tunnel="yes" required="no"/>
+		<xsl:param name="parm-bib-link-template" tunnel="yes" required="no"/>
 		<xsl:choose>
 			<!-- MODIFIED for SigiDoc by MS 2023-06-16 -->
 			<xsl:when test=" $parm-leiden-style = 'medcyprus' or $parm-edn-structure='inslib' or $parm-edn-structure='sample' or $parm-edn-structure='sigidoc'">
-			 <!-- if you are running this template outside EFES, change the path to the bibliography authority list accordingly -->
-				<xsl:variable name="bibliography-al" select="concat('file:',system-property('user.dir'),'/webapps/ROOT/content/xml/authority/bibliography.xml')"/>
 				<xsl:variable name="bibl-ref" select="translate(@target, '#', '')"/>
 				<xsl:choose>
-				 <xsl:when test="doc-available($bibliography-al) = fn:true()">
-				   <xsl:variable name="bibl" select="document($bibliography-al)//t:bibl[@xml:id=$bibl-ref][not(@sameAs)]"/>
-				    <a href="../concordance/bibliography/{$bibl-ref}.html" target="_blank">
+				 <xsl:when test="doc-available($parm-bibloc) = fn:true()">
+				   <xsl:variable name="bibl" select="document($parm-bibloc)//t:bibl[@xml:id=$bibl-ref][not(@sameAs)]"/>
+				    <a href="{replace($parm-bib-link-template, '\$1', $bibl-ref)}" target="_blank">
 				     <xsl:choose>
 					<xsl:when test="$bibl//t:bibl[@type='abbrev']">
 					  <xsl:apply-templates select="$bibl//t:bibl[@type='abbrev'][1]"/>
diff --git a/htm-teidivapparatus.xsl b/htm-teidivapparatus.xsl
index aaafa89..1f87c18 100644
--- a/htm-teidivapparatus.xsl
+++ b/htm-teidivapparatus.xsl
@@ -242,14 +242,15 @@
     <xsl:param name="parm-edn-structure" tunnel="yes" required="no"/>
     
     <xsl:param name="parm-leiden-style" tunnel="yes" required="no"/>
+    <xsl:param name="parm-bibloc" tunnel="yes" required="no"/>
+    <xsl:param name="parm-bib-link-template" tunnel="yes" required="no"/>
     <xsl:variable name="biblio" select="tokenize(substring-after(., '#'), ' #')"/>
-    
+
     <xsl:choose>
       <xsl:when test="$parm-edn-structure=('inslib', 'sample') or $parm-leiden-style = 'medcyprus'">
-        <xsl:variable name="bibliography-al" select="concat('file:',system-property('user.dir'),'/webapps/ROOT/content/xml/authority/bibliography.xml')"/>
+        <xsl:variable name="bibliography-al" select="string($parm-bibloc)"/>
         <xsl:for-each select="$biblio">
           <xsl:variable name="bib" select="normalize-space(.)"/>
-          <!-- if you are running this template outside EFES, change the path to the bibliography authority list accordingly -->
           <xsl:variable name="bibl">
             <xsl:if test="doc-available($bibliography-al)">
               <xsl:sequence select="document($bibliography-al)//t:bibl[@xml:id=$bib][not(@sameAs)]"></xsl:sequence>
@@ -258,7 +259,7 @@
           <xsl:if test="position()=1"><xsl:text> </xsl:text></xsl:if>
           <xsl:choose>
             <xsl:when test="doc-available($bibliography-al) and $bibl">
-              <a href="../concordance/bibliography/{$bib}.html" target="_blank">
+              <a href="{replace($parm-bib-link-template, '\$1', $bib)}" target="_blank">
                 <xsl:choose>
                   <xsl:when test="$bibl//t:bibl[@type='abbrev']">
                     <xsl:apply-templates select="$bibl//t:bibl[@type='abbrev'][1]"/>
diff --git a/htm-tpl-struct-inslib.xsl b/htm-tpl-struct-inslib.xsl
index a2ccd07..0d97705 100644
--- a/htm-tpl-struct-inslib.xsl
+++ b/htm-tpl-struct-inslib.xsl
@@ -19,6 +19,9 @@
   </xsl:variable>
   
   <xsl:template name="inslib-body-structure">
+    <xsl:param name="parm-bibloc" tunnel="yes" required="no"/>
+    <xsl:param name="parm-bib-link-template" tunnel="yes" required="no"/>
+    <xsl:param name="parm-places-file" tunnel="yes" required="no"/>
     <div id="full-edition">
       <div id="edition-text">
         <xsl:call-template name="inslib-navigation"/>
@@ -239,12 +242,11 @@
               <xsl:if test="@source">
                 <xsl:variable name="source-id" select="substring-after(@source, '#')"/>
                 <p><xsl:text>Translation source: </xsl:text> 
-                  <!-- if you are running this template outside EFES, change the path to the bibliography authority list accordingly -->
-                  <xsl:variable name="bibliography-al" select="concat('file:',system-property('user.dir'),'/webapps/ROOT/content/xml/authority/bibliography.xml')"/>
+                  <xsl:variable name="bibliography-al" select="string($parm-bibloc)"/>
                   <xsl:choose>
                     <xsl:when test="doc-available($bibliography-al) = fn:true() and document($bibliography-al)//t:bibl[@xml:id=$source-id][not(@sameAs)]">
                       <xsl:variable name="source" select="document($bibliography-al)//t:bibl[@xml:id=$source-id][not(@sameAs)]"/>
-                      <a href="{concat('../concordance/bibliography/',$source-id,'.html')}" target="_blank">
+                      <a href="{replace($parm-bib-link-template, '\$1', $source-id)}" target="_blank">
                         <xsl:choose>
                           <xsl:when test="$source//t:bibl[@type='abbrev']">
                             <xsl:apply-templates select="$source//t:bibl[@type='abbrev'][1]"/>
@@ -373,15 +375,14 @@
         </xsl:if>
           
         <xsl:if test="$inslib-corpus='IGCyr'">
-          <!-- if you are running this template outside EFES, change the path to the places authority list accordingly -->
-          <xsl:if test="doc-available(concat('file:',system-property('user.dir'),'/webapps/ROOT/content/xml/authority/places.xml')) = fn:true()">
+          <xsl:if test="doc-available(string($parm-places-file)) = fn:true()">
             <div id="maps">
               <h3>Maps</h3>
               <div class="row map_box">
                 <div id="specific_map" class="map inscription_map"></div>
                 <xsl:variable name="place-name" select="//t:provenance[@type='found'][1]//t:p[1]//t:placeName[@type='ancientFindspot'][1]"/>
                 <xsl:variable name="place-id" select="//t:provenance[@type='found'][1]//t:p[1]//t:placeName[@type='ancientFindspot'][1]/@key"/>
-                <xsl:variable name="places-al" select="document(concat('file:',system-property('user.dir'),'/webapps/ROOT/content/xml/authority/places.xml'))//t:place[descendant::t:placeName=$place-name][1]"/>
+                <xsl:variable name="places-al" select="document(string($parm-places-file))//t:place[descendant::t:placeName=$place-name][1]"/>
                 <xsl:variable name="counter" select="$places-al//t:note[@type='total_inscriptions']"/>
                 <xsl:variable name="points" select="concat(string-join($place-name, ''), '#', string-join($counter, '') ,'@', substring-after(string-join($place-id, ''), 'slsgazetteer.org/'))"/>
                 <script type="text/javascript">
@@ -542,9 +543,9 @@
   </xsl:template>
   
   <xsl:template match="t:placeName|t:rs|t:repository" mode="inslib-placename">
+    <xsl:param name="parm-institutions-file" tunnel="yes" required="no"/>
     <xsl:variable name="ref-id" select="substring-after(@ref, '#')"/>
-    <!-- if you are running this template outside EFES, change the path to the institutions authority list accordingly -->
-    <xsl:variable name="institutions-list" select="concat('file:',system-property('user.dir'),'/webapps/ROOT/content/xml/authority/institution.xml')"/>
+    <xsl:variable name="institutions-list" select="string($parm-institutions-file)"/>
     <xsl:choose>
       <xsl:when test="contains(@ref,'institution.xml') and doc-available($institutions-list) = fn:true() and document($institutions-list)//t:place[@xml:id=$ref-id]//t:idno[1]">
         <a target="_blank" href="{document($institutions-list)//t:place[@xml:id=$ref-id]//t:idno[1]}"><xsl:apply-templates/></a>
diff --git a/htm-tpl-struct-medcyprus.xsl b/htm-tpl-struct-medcyprus.xsl
index c7b1300..54cfec3 100755
--- a/htm-tpl-struct-medcyprus.xsl
+++ b/htm-tpl-struct-medcyprus.xsl
@@ -10,9 +10,10 @@
    <!-- Called from htm-tpl-structure.xsl -->
 
    <xsl:template name="medcyprus-body-structure">
-     <xsl:variable name="editor" select="//t:titleStmt/t:author|//t:titleStmt/t:editor"/>  
-     <!-- if you are running this template outside EFES, change the path to the bibliography authority list accordingly -->
-     <xsl:variable name="bibliography-al" select="concat('file:',system-property('user.dir'),'/webapps/ROOT/content/xml/authority/bibliography.xml')"/>
+     <xsl:param name="parm-bibloc" tunnel="yes" required="no"/>
+     <xsl:param name="parm-bib-link-template" tunnel="yes" required="no"/>
+     <xsl:variable name="editor" select="//t:titleStmt/t:author|//t:titleStmt/t:editor"/>
+     <xsl:variable name="bibliography-al" select="string($parm-bibloc)"/>
      
      <p>
        <b>License: </b> <a target="_blank" href="{//t:licence/@target}"><xsl:value-of select="//t:licence"/></a>
@@ -119,7 +120,7 @@
            <xsl:choose>
              <xsl:when test="doc-available($bibliography-al) = fn:true() and document($bibliography-al)//t:bibl[@xml:id=$source-id][not(@sameAs)]">
                <xsl:variable name="source" select="document($bibliography-al)//t:bibl[@xml:id=$source-id][not(@sameAs)]"/>
-               <a href="{concat('../concordance/bibliography/',$source-id,'.html')}" target="_blank">
+               <a href="{replace($parm-bib-link-template, '\$1', $source-id)}" target="_blank">
                  <xsl:choose>
                    <xsl:when test="$source//t:title[@type='short']">
                      <xsl:apply-templates select="$source//t:title[@type='short'][1]"/>
@@ -233,7 +234,7 @@
                <xsl:choose>
                  <xsl:when test="doc-available($bibliography-al) = fn:true() and document($bibliography-al)//t:bibl[@xml:id=$source-id][not(@sameAs)]">
                    <xsl:variable name="source" select="document($bibliography-al)//t:bibl[@xml:id=$source-id][not(@sameAs)]"/>
-                   <a href="../concordance/bibliography/{$source-id}.html" target="_blank">
+                   <a href="{replace($parm-bib-link-template, '\$1', $source-id)}" target="_blank">
                      <xsl:choose>
                        <xsl:when test="$source//t:title[@type='short']">
                          <xsl:apply-templates select="$source//t:title[@type='short'][1]"/>
diff --git a/start-edition.xsl b/start-edition.xsl
index 9e7fb79..19b7829 100644
--- a/start-edition.xsl
+++ b/start-edition.xsl
@@ -123,6 +123,11 @@
                   <xsl:with-param name="parm-css-loc" select="$css-loc" tunnel="yes"/>
                   <xsl:with-param name="parm-bib" select="$bibliography" tunnel="yes"/>
                   <xsl:with-param name="parm-bibloc" select="$localbibl" tunnel="yes"/>
+                  <xsl:with-param name="parm-bib-link-template" select="$bib-link-template" tunnel="yes"/>
+                  <xsl:with-param name="parm-symbols-file" select="$symbols-file" tunnel="yes"/>
+                  <xsl:with-param name="parm-places-file" select="$places-file" tunnel="yes"/>
+                  <xsl:with-param name="parm-institutions-file" select="$institutions-file" tunnel="yes"/>
+                  <xsl:with-param name="parm-authority-dir" select="$authority-dir" tunnel="yes"/>
                   <xsl:with-param name="parm-zoteroUorG" select="$ZoteroUorG" tunnel="yes"/>
                   <xsl:with-param name="parm-zoteroKey" select="$ZoteroKey" tunnel="yes"/>
                   <xsl:with-param name="parm-zoteroNS" select="$ZoteroNS" tunnel="yes"/>
diff --git a/teig.xsl b/teig.xsl
index 055bec3..e380806 100644
--- a/teig.xsl
+++ b/teig.xsl
@@ -22,13 +22,13 @@
       <xsl:param name="parm-leiden-style" tunnel="yes" required="no"></xsl:param>
       <xsl:param name="parm-edition-type" tunnel="yes" required="no"></xsl:param>
       <xsl:param name="parm-glyph-variant" tunnel="yes" required="no"></xsl:param>
-      
+      <xsl:param name="parm-symbols-file" tunnel="yes" required="no"></xsl:param>
+
       <xsl:choose>
 <!-- **** TEMPORARY FIX FOR MEDCYPRUS TEMPLATE **** -->
          <xsl:when test="$parm-leiden-style=('medcyprus')">
             <xsl:variable name="symbol" select="substring-after(@ref,'#')"/>
-            <!-- if you are running this template outside EFES, change the path to the symbols authority list accordingly -->
-            <xsl:variable name="symbols-al" select="concat('file:',system-property('user.dir'),'/webapps/ROOT/content/xml/authority/symbols.xml')"/>
+            <xsl:variable name="symbols-al" select="string($parm-symbols-file)"/>
             <xsl:choose>
                <xsl:when test="doc-available($symbols-al) = fn:true() and document($symbols-al)//t:glyph[@xml:id=$symbol]">
                   <xsl:variable name="symbol-id" select="document($symbols-al)//t:glyph[@xml:id=$symbol]"/>
@@ -86,6 +86,7 @@
    <xsl:param name="parm-leiden-style" tunnel="yes" required="no"></xsl:param>
    <xsl:param name="parm-edition-type" tunnel="yes" required="no"></xsl:param>
    <xsl:param name="parm-glyph-variant" tunnel="yes" required="no"></xsl:param>
+   <xsl:param name="parm-authority-dir" tunnel="yes" required="no"/>
    
    <xsl:param name="g"></xsl:param>
    
@@ -132,7 +133,11 @@
          <!--            ref may be a full string, or rather use a prefix, declared in prefixDecl, the xml:id assigned to the glyph may be thus without anchor, and needs to be reconstructed before-->
          <xsl:variable name="parsedRef" select="EDF:refParser(@ref, //t:listPrefixDef)"/>
          
-         <xsl:variable name="externalCharDecl" select="if ($parm-leiden-style='medcyprus') then concat('file:',system-property('user.dir'),'/webapps/ROOT/content/xml/authority/', substring-before($parsedRef, '#')) else substring-before($parsedRef, '#')"/>
+         <xsl:variable name="externalCharDeclFile" select="substring-before($parsedRef, '#')"/>
+         <xsl:variable name="externalCharDecl" select="
+             if ($parm-authority-dir and doc-available(concat($parm-authority-dir, $externalCharDeclFile)))
+             then concat($parm-authority-dir, $externalCharDeclFile)
+             else $externalCharDeclFile"/>
          <xsl:choose>
             <xsl:when test="doc-available($externalCharDecl)">
                <xsl:variable name="externalCharDecldoc" select="doc($externalCharDecl)"/>