diff --git a/nkjp2korap.xsl b/nkjp2korap.xsl
index 5a486c0..c70a01d 100644
--- a/nkjp2korap.xsl
+++ b/nkjp2korap.xsl
@@ -9,12 +9,15 @@
   <xsl:param name="docID" as="xs:string"/>
   <xsl:param name="textID" as="xs:string"/>
 
-  <xsl:param name="sourceDir" select="'test/resources/nkjp2korap_sample1/KOT/'" as="xs:string"/>
-  <!-- the select is a fallback, so that it's clear to the reviewer what I'm passing in the param -->
+  <xsl:param name="sourceDir" select="'test/resources/nkjp2korap_sample2'" as="xs:string"/>
+  <!-- the directory containing NKJP files, in the form of a collection of text-level dirs -->
 
-  <xsl:variable name="targetTextDir"
-    select="'test/output/' || $corpusID || '/' || $docID || '/' || $textID || '/'" as="xs:string"/>
-  <xsl:variable name="targetCorpusDir" select="'test/output/' || $corpusID || '/'" as="xs:string"/>
+  <xsl:param name="targetDir" select="'test/output'" as="xs:string"/>
+
+  <xsl:variable name="targetTextDir_slashed"
+    select="$targetDir || '/' || $corpusID || '/' || $docID || '/' || $textID || '/'" as="xs:string"/>
+
+  <xsl:variable name="targetCorpusDir_slashed" select="$targetDir || '/' || $corpusID || '/'" as="xs:string"/>
 
   <xsl:variable name="systemDoctypeI5"
     select="'http://corpora.ids-mannheim.de/I5/DTD/i5.dtd'" as="xs:string"
@@ -83,23 +86,42 @@
   <xsl:template match="@default" mode="#all"/>
   <!--  this is to delete some auto-inserted attribute throughout -->
 
+  <xsl:variable name="collection_params" as="xs:string" static="yes"
+    select="'recurse=yes;validation=strip;select=text.xml;content-type=application/xml;on-error=warning;xinclude=yes'"
+  />
+
+<xsl:variable name="collection_of_text" select="collection($sourceDir || '?' || $collection_params)" as="document-node()+"/>
+
   <xsl:template name="xsl:initial-template">
-    <xsl:variable name="text.xml" as="document-node()" select="doc($sourceDir || 'text.xml')"/>
+    <xsl:variable name="text.xml" select="$collection_of_text[1]"/>
+
+    <!-- we only want to call this once, and we process a random NKJP corpus file for that purpose, 
+      because all we need is the main corpus header, and we can (should) get to that from any NKJP corpus document -->
+    <xsl:call-template name="create_corpus_header">
+      <xsl:with-param name="text.xml" select="$text.xml" as="document-node()"/>
+      <xsl:with-param name="target" select="$targetCorpusDir_slashed || 'header.xml'" as="xs:string"/>
+    </xsl:call-template>
+
+
+  </xsl:template>
+  
+  <xsl:template name="process_single_sample">
+    <xsl:variable name="text.xml" as="document-node()" select="doc($sourceDir || '/text.xml')"/>
     <xsl:variable name="ann_morphosyntax.xml" as="document-node()"
-      select="doc($sourceDir || 'ann_morphosyntax.xml')"/>
+      select="doc($sourceDir || '/ann_morphosyntax.xml')"/>
     <xsl:variable name="ann_segmentation.xml" as="document-node()"
-      select="doc($sourceDir || 'ann_segmentation.xml')"/>
+      select="doc($sourceDir || '/ann_segmentation.xml')"/>
 
     <xsl:call-template name="create_data">
       <xsl:with-param name="text.xml" select="$text.xml" as="document-node()"/>
-      <xsl:with-param name="target" select="$targetTextDir || 'data.xml'" as="xs:string"/>
+      <xsl:with-param name="target" select="$targetTextDir_slashed || 'data.xml'" as="xs:string"/>
     </xsl:call-template>
 
     <xsl:call-template name="create_struct">
       <xsl:with-param name="text.xml" select="$text.xml" as="document-node()"/>
       <xsl:with-param name="ann_segmentation.xml" select="$ann_segmentation.xml"
         as="document-node()"/>
-      <xsl:with-param name="target" select="$targetTextDir || 'struct/structure.xml'" as="xs:string"
+      <xsl:with-param name="target" select="$targetTextDir_slashed || 'struct/structure.xml'" as="xs:string"
       />
     </xsl:call-template>
 
@@ -109,18 +131,14 @@
         as="document-node()"/>
       <xsl:with-param name="ann_morphosyntax.xml" select="$ann_morphosyntax.xml"
         as="document-node()"/>
-      <xsl:with-param name="target" select="$targetTextDir || 'nkjp/morpho.xml'" as="xs:string"/>
+      <xsl:with-param name="target" select="$targetTextDir_slashed || 'nkjp/morpho.xml'" as="xs:string"/>
     </xsl:call-template>
 
     <xsl:call-template name="create_text_header">
       <xsl:with-param name="text.xml" select="$text.xml" as="document-node()"/>
-      <xsl:with-param name="target" select="$targetTextDir || 'header.xml'" as="xs:string"/>
+      <xsl:with-param name="target" select="$targetTextDir_slashed || 'header.xml'" as="xs:string"/>
     </xsl:call-template>
 
-    <xsl:call-template name="create_corpus_header">
-      <xsl:with-param name="text.xml" select="$text.xml" as="document-node()"/>
-      <xsl:with-param name="target" select="$targetCorpusDir || 'header.xml'" as="xs:string"/>
-    </xsl:call-template>
   </xsl:template>
 
   <!--   **************************        data.xml       *******************                -->