diff --git a/data.xml b/data.xml
index 9a9e77e..d25b2b6 100644
--- a/data.xml
+++ b/data.xml
@@ -487,7 +487,7 @@ Zudem gibt es einen neuen Redaktions-PGP-Key, erhältlich auf allen Keyservern o
 	<!--date>???, ?? Sep 1988 00:00 UT</date-->
 </schleuder>
 <schleuder id="25">
-	<image>covers/ds25.jpg</image>
+	<image>covers/ds025.jpg</image>
 	<link>/pdfs/ds025.pdf</link>
 	<filesize>7984192</filesize>
 	<!--date>???, ?? Mar 1988 00:00 UT</date-->
@@ -617,8 +617,9 @@ Zudem gibt es einen neuen Redaktions-PGP-Key, erhältlich auf allen Keyservern o
 	<!--date>???, ?? Apr 1984 00:00 UT</date-->
 </schleuder>
 <schleuder id="1">
-	<image>covers/ds1.jpg</image>
-	<link>/alteszeug.html</link>
-	<!--date></date-->
+	<image>covers/ds001.jpg</image>
+	<link>/pdfs/ds001.pdf</link>
+	<filesize>486824</filesize>
+	<!--date>1984</date-->
 </schleuder>
 </schleudern>
diff --git a/gen.sh b/gen.sh
index 086c447..1d8154f 100755
--- a/gen.sh
+++ b/gen.sh
@@ -34,10 +34,11 @@ assert_source () {
 }
 build () {
 	datafn="$1"
-	dependencies="xsltproc"
+	dependencies="xsltproc date"
 	assert_tools ${dependencies}
 	>&2 printf "building ds-feed.xml … "
-	xsltproc --encoding utf-8 -o ds-feed.xml rss.xsl $datafn && { >&2 printf "done.\n"; } || { >&2 printf "failed on rss.xsl.\n"; exit 1; }
+	# --stringparam current-date `date +%Y-%m-%d` # possibility for current date-time-group via XSLT <xsl:value-of select="$current-date"/>
+	xsltproc --stringparam current-date "$(date --rfc-email)" --encoding utf-8 -o ds-feed.xml rss.xsl $datafn && { >&2 printf "done.\n"; } || { >&2 printf "failed on rss.xsl.\n"; exit 1; }
 	>&2 printf "building download.html … "
 	xsltproc --encoding iso-8859-1 -o download.html download.xsl $datafn && { >&2 printf "done.\n"; } || { >&2 printf "failed on download.xsl.\n"; exit 1; }
 	>&2 printf "building index.html … "
diff --git a/rss.xsl b/rss.xsl
index e1d2907..c52c287 100644
--- a/rss.xsl
+++ b/rss.xsl
@@ -1,39 +1,57 @@
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" encoding="UTF-8" version="1.0">
-<!--
-xmlns:exsltstr="http://exslt.org/strings"
--->
+<xsl:stylesheet encoding="UTF-8" version="1.0"
+xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+>
+<!-- xmlns:exsltstr="http://exslt.org/strings" -->
+<!-- xmlns:date="http://exslt.org/dates-and-times" extension-element-prefixes="date" -->
 <xsl:output omit-xml-declaration="yes"/>
+<!--xsl:output method="xml" indent="yes" encoding="utf-8"/-->
+<!--xmlns:dc="http://purl.org/dc/elements/1.1/"-->
 
 	<xsl:template match="/schleudern">
 <!--DOCTYPE rss-->
-<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
-
-<channel>
+<xsl:text disable-output-escaping="yes">&lt;?xml version="1.0" encoding="UTF-8"?&gt;</xsl:text><xsl:text>&#10;</xsl:text>
+<xsl:text disable-output-escaping="yes">&lt;?xml-stylesheet type="text/css" href="https://ds.ccc.de/style-rss.css"?&gt;</xsl:text><xsl:text>&#10;</xsl:text>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><xsl:text>&#10;</xsl:text>
+<xsl:text>&#10;</xsl:text>
+<channel><xsl:text>&#10;&#9;</xsl:text>
 	<xsl:variable name="limitenclosures">0</xsl:variable><!-- 0:no limit, 1:limit is one  -->
 	<xsl:variable name="protocol">https://</xsl:variable>
 	<xsl:variable name="baseurl">ds.ccc.de</xsl:variable>
 	<xsl:variable name="feedfile">/ds-feed.xml</xsl:variable>
+	<title>Datenschleuder</title>
+	<xsl:text>&#10;&#9;</xsl:text>
 	<xsl:element name="atom:link">
-		<xsl:attribute name="rel">self</xsl:attribute>
+		<xsl:attribute name="rel">self</xsl:attribute><!-- when atom url is rss url -->
 		<xsl:attribute name="href"><xsl:value-of select="concat($protocol,$baseurl,$feedfile)"/></xsl:attribute>
 		<xsl:attribute name="type">application/rss+xml</xsl:attribute>
 	</xsl:element>
+	<xsl:text>&#10;&#9;</xsl:text>
 <!--
 <atom:link href="https://ds.ccc.de/ds-feed.xml" rel="self" type="application/rss+xml" />
 -->
-<title>Datenschleuder</title>
-<xsl:element name="link"><xsl:value-of select="concat($protocol,$baseurl,'/')"/></xsl:element><!-- <link>https://ds.ccc.de</link> -->
-<description>Das wissenschaftliche Fachblatt für Datenreisende; ein Organ des Chaos Computer Club.</description>
-<language>de</language>
-<!--copyright></copyright-->
-<managingEditor>ds@ccc.de (Redaktion)</managingEditor>
-<!--lastBuildDate></lastBuildDate-->
-<ttl>65535</ttl>
-<image>
-	<xsl:element name="url"><xsl:value-of select="concat($protocol,$baseurl,'/i/ds_headline.gif')"/></xsl:element><!--	<url>https://ds.ccc.de</url> -->
-	<title>Datenschleuder</title>
-	<xsl:element name="link"><xsl:value-of select="concat($protocol,$baseurl,'/')"/></xsl:element>
-</image>
+	<xsl:element name="link"><xsl:value-of select="concat($protocol,$baseurl,'/')"/></xsl:element><!-- <link>https://ds.ccc.de</link> -->
+	<xsl:text>&#10;&#9;</xsl:text>
+	<description>Das wissenschaftliche Fachblatt für Datenreisende; ein Organ des Chaos Computer Club.</description>
+	<xsl:text>&#10;&#9;</xsl:text>
+	<lastBuildDate><xsl:value-of select="$current-date"/></lastBuildDate>
+	<xsl:text>&#10;&#9;</xsl:text>
+	<!-- lastBuildDate>Tue, 30 Mar 2021 10:27:18 +0000</lastBuildDate-->
+		<!-- <xsl:value-of select="date:date-time()"/> -->
+		<!-- # \-\-stringparam current-date `date +%Y-%m-%d` # possibility for current date-time-group via XSLT <xsl:value-of select="$current-date"/> -->
+	<language>de</language>
+	<xsl:text>&#10;&#9;</xsl:text>
+	<!--copyright></copyright-->
+	<managingEditor>ds@ccc.de (Redaktion)</managingEditor>
+	<xsl:text>&#10;&#9;</xsl:text>
+	<!--webMaster>ds@ccc.de</webMaster-->
+	<ttl>65535</ttl>
+	<xsl:text>&#10;&#9;</xsl:text>
+	<image>
+		<xsl:element name="url"><xsl:value-of select="concat($protocol,$baseurl,'/i/ds_headline.gif')"/></xsl:element><!--	<url>https://ds.ccc.de</url> -->
+		<title>Datenschleuder</title>
+		<xsl:element name="link"><xsl:value-of select="concat($protocol,$baseurl,'/')"/></xsl:element>
+	</image>
+	<xsl:text>&#10;&#9;</xsl:text>
 
 <!--
 <item>
@@ -53,15 +71,23 @@ xmlns:exsltstr="http://exslt.org/strings"
 <xsl:for-each select="catalog/cd">
 -->
 		<xsl:element name="item">
+		<xsl:text>&#10;&#9;</xsl:text>
 			<!-- we do not have most optional elements -->
 			<xsl:element name="title"><xsl:value-of select="concat('Datenschleuder #',@id)"/></xsl:element>
+		<xsl:text>&#10;&#9;</xsl:text>
+
+			<xsl:choose>
+				<xsl:when test="not(date)"></xsl:when>
+				<xsl:otherwise><xsl:element name="pubDate"><xsl:value-of select="date"/></xsl:element><xsl:text>&#10;&#9;</xsl:text></xsl:otherwise>
+			</xsl:choose>
 
 			<xsl:element name="description">
-				<xsl:text disable-output-escaping="yes">&lt;![CDATA[ </xsl:text>
+				<xsl:text disable-output-escaping="yes">&lt;![CDATA[</xsl:text>
 				<xsl:value-of select="concat('Ausgabe #',@id,' ')"/>
-				
+
 				<xsl:if test="string-length(preface) &gt; 0">
 					<xsl:element name="a"><xsl:attribute name="href"><xsl:value-of select="concat($protocol,$baseurl,preface)"/></xsl:attribute>Geleitwort</xsl:element>
+					<xsl:text>&#10;&#9;</xsl:text>
 				</xsl:if>
 
 				<xsl:if test="string-length(image) &gt; 0">
@@ -69,22 +95,20 @@ xmlns:exsltstr="http://exslt.org/strings"
 					<xsl:element name="img"><xsl:attribute name="src">
 						<xsl:value-of select="concat($protocol,$baseurl,'/',image)"/></xsl:attribute>
 					</xsl:element>
+					<xsl:text>&#10;&#9;</xsl:text>
 				</xsl:if>
 
-				<xsl:for-each select="link">	
+				<xsl:for-each select="link">
 					<xsl:if test="((position() &gt; 1) and ($limitenclosures = 1))">
 						<xsl:text disable-output-escaping="yes"> </xsl:text>
 						<xsl:element name="a"><xsl:attribute name="href"><xsl:value-of select="concat($protocol,$baseurl,.)"/></xsl:attribute><xsl:value-of select="concat('Anhang ',position())"/></xsl:element>
+						<xsl:text>&#10;&#9;</xsl:text>
 					</xsl:if>
 				</xsl:for-each>
 
-				<xsl:text disable-output-escaping="yes"> ]]&gt;</xsl:text>				
+				<xsl:text disable-output-escaping="yes">]]&gt;</xsl:text>
 			</xsl:element>
-
-			<xsl:choose>
-				<xsl:when test="not(date)"></xsl:when>
-				<xsl:otherwise><xsl:element name="pubDate"><xsl:value-of select="date"/></xsl:element></xsl:otherwise>
-			</xsl:choose>
+			<xsl:text>&#10;&#9;</xsl:text>
 
 			<xsl:variable name="id">
 				<xsl:value-of select="@id"/>
@@ -94,7 +118,7 @@ xmlns:exsltstr="http://exslt.org/strings"
 
 				<xsl:variable name="position">
 					<xsl:value-of select="position()"/>
-				</xsl:variable> 
+				</xsl:variable>
 
 				<xsl:variable name="href">
 					<xsl:value-of select="concat($protocol,$baseurl,.)"/>
@@ -106,10 +130,10 @@ xmlns:exsltstr="http://exslt.org/strings"
 							<xsl:value-of select="@filesize"/>
 						</xsl:when>
 						<xsl:otherwise>
-							<xsl:value-of select="../filesize"/>
+							<xsl:value-of select="../filesize"/><!-- todo: if not available lenth="0" -->
 						</xsl:otherwise>
 					</xsl:choose>
-				</xsl:variable> 
+				</xsl:variable>
 
 				<xsl:variable name="type">
 					<xsl:choose>
@@ -125,7 +149,7 @@ xmlns:exsltstr="http://exslt.org/strings"
 						<xsl:element name="guid">
 							<xsl:attribute name="isPermaLink">true</xsl:attribute>
 							<xsl:value-of select="$href"/>
-						</xsl:element> 
+						</xsl:element>
 					</xsl:if>
 					<xsl:if test="$type = 'html'">
 						<xsl:element name="guid">
@@ -135,7 +159,7 @@ xmlns:exsltstr="http://exslt.org/strings"
 					</xsl:if>
 					<xsl:element name="link">
 						<xsl:value-of select="$href"/>
-					</xsl:element> 
+					</xsl:element>
 				</xsl:if>
 
 				<xsl:if test="((($position &gt; 1) and ($limitenclosures = 0)) or ($position = 1))">
@@ -146,7 +170,7 @@ xmlns:exsltstr="http://exslt.org/strings"
 								<xsl:attribute name="url"><xsl:value-of select="$href"/></xsl:attribute>
 								<xsl:attribute name="length"><xsl:value-of select="$filesize"/></xsl:attribute>
 								<xsl:attribute name="type">application/pdf</xsl:attribute>
-							</xsl:element> 
+							</xsl:element>
 
 						</xsl:when>
 						<xsl:when test="$type = 'epub'">
@@ -174,7 +198,7 @@ xmlns:exsltstr="http://exslt.org/strings"
 						<xsl:value-of select="concat($protocol,$baseurl,'/#',exsltstr:encode-uri(@id, 'true', 'UTF-8'))"/>
 -->
 						<xsl:value-of select="concat($protocol,$baseurl,'/#',@id)"/>
-					</xsl:element> 
+					</xsl:element>
 			</xsl:if>
 		</xsl:element>
 	</xsl:for-each>
diff --git a/style-rss.css b/style-rss.css
new file mode 100644
index 0000000..ec04c9b
--- /dev/null
+++ b/style-rss.css
@@ -0,0 +1,47 @@
+rss {
+	display: block;
+	font-family: verdana, arial;
+}
+channel title {
+	display: block;
+	margin: 5px;
+	padding: 2px;
+	color: gray;
+	border-bottom: 1px solid silver;
+	font-size: 2em;
+}
+link {
+	display: block;
+	font-size: small;
+	padding-left: 10px;
+}
+item {
+	display: block;
+	padding: 2px 30px 2px 30px;
+}
+docs {
+	display: block;
+	background-color: #ffffe6;
+	margin: 20px;
+	text-align: center;
+	padding: 5px;
+	color: #7f7f7f;
+	border: 1px solid silver;
+}
+description {
+	display: block;
+	font-size: 1.2em;
+}
+pubDate:before {
+	content:"Veröffentlicht: ";
+}
+managingEditor:before{
+	content:"E-Mail: ";
+}
+lastBuildDate:before{
+	content:"Letzte Aktualisierung: ";
+}
+/* all hidden elements */
+channel link, channel image, image title, language, ttl, guid, category {
+	display: none;
+}