diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 534c233..732b8b5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -56,13 +56,13 @@
           - apt-cache/
     - key:
         files:
-          - target/dnb.i5.xml
+          - target/dnb18.i5.xml
       paths:
-          - target/dnb.zip
-          - target/dnb.tree_tagger.zip
-          - target/dnb.marmot-malt.zip
-          - target/dnb.spacy.zip
-          - target/dnb.krill.tar
+          - target/dnb18.zip
+          - target/dnb18.tree_tagger.zip
+          - target/dnb18.marmot-malt.zip
+          - target/dnb18.spacy.zip
+          - target/dnb18.krill.tar
   before_script:
     - source `find .. -name section_helper.sh`
     - start_section install_linux_packages "Installing missing Linux packages"
@@ -92,12 +92,12 @@
     - touch target/*.zip # ignore timestamps in make
     - sleep 1
     - touch target/*.*.zip
-    - MAX_THREADS=2 make -j $(nproc) target/dnb.index.tar.xz
+    - MAX_THREADS=2 make -j $(nproc) target/dnb18.index.tar.xz
     - end_section building_krill
   artifacts:
     paths:
       - target/*.zip
-      - target/dnb.index.tar.xz
+      - target/dnb18.index.tar.xz
 
 deploy:
   stage: deploy
@@ -118,6 +118,6 @@
     - end_section setup_ssh
   script:
     - start_section korapxmlu "Uploading index to KorAP4DNB instance"
-    - touch target/dnb.index.tar.xz
+    - touch target/dnb18.index.tar.xz
     - make deploy
     - end_section deploy
diff --git a/Makefile b/Makefile
index 8b5e4c4..475a863 100644
--- a/Makefile
+++ b/Makefile
@@ -5,6 +5,7 @@
 DEPLOY_USER ?= korap
 DEPLOY_PATH ?= /export/netapp/korap4dnb
 MAX_THREADS ?= $(shell nproc)
+YY ?= 18
 
 .PHONY: all clean test krill index deploy server-log server-status
 
@@ -14,17 +15,17 @@
 
 all: index
 
-krill: $(TARGET_DIR)/dnb.krill.tar
-index: $(TARGET_DIR)/dnb.index.tar.xz
+krill: $(TARGET_DIR)/dnb$(YY).krill.tar
+index: $(TARGET_DIR)/dnb$(YY).index.tar.xz
 
 KORAPXML2CONLLU ?= java -jar lib/korapxml2conllu.jar
 
-$(TARGET_DIR)/dnb.i5.xml: $(patsubst $(SRC_DIR)/%.epub,$(TARGET_DIR)/%.i5.xml,$(wildcard $(SRC_DIR)/*.epub))
-	head -n -1 xslt/idsCorpus-template.xml > $@
-	cat $^ >> $@
+$(TARGET_DIR)/dnb$(YY).i5.xml: $(patsubst $(SRC_DIR)/%.epub,$(TARGET_DIR)/%.i5.xml,$(wildcard $(SRC_DIR)/*.epub))
+	head -n -1 xslt/idsCorpus-template.xml | sed -e 's/{YY}/$(YY)/' > $@
+	for f in $^; do if head -500 $$f | grep -Eq '<pubDate type="year">..$(YY)'; then cat $$f >> $@; fi; done
 	tail -n 1 xslt/idsCorpus-template.xml  >> $@
 
-test: $(TARGET_DIR)/dnb.i5.xml
+test: $(TARGET_DIR)/dnb$(YY).i5.xml
 	xmllint --noout --valid $<
 
 $(BUILD_DIR)/%: $(SRC_DIR)/%.epub
@@ -55,7 +56,7 @@
 	curl -sL -o $@  https://corpora.ids-mannheim.de/tools/$@
 
 %.marmot-malt.zip: %.zip models/de.marmot models/german.mco
-	$(KORAPXML2CONLLU) -T $(MAX_THREADS) -t marmot:models/de.marmot -P malt:models/german.mco $< | tee $(TARGET_DIR)/dnb.marmot-malt.conllu | conllu2korapxml > $@
+	$(KORAPXML2CONLLU) -T $(MAX_THREADS) -t marmot:models/de.marmot -P malt:models/german.mco $< | tee $(TARGET_DIR)/dnb$(YY).marmot-malt.conllu | conllu2korapxml > $@
 
 %.ud.zip: %.zip
 	$(KORAPXML2CONLLU) $< | pv | ./scripts/udpipe2 | conllu2korapxml > $@
diff --git a/Readme.md b/Readme.md
index 390fc8c..b6426e3 100644
--- a/Readme.md
+++ b/Readme.md
@@ -5,7 +5,7 @@
 ### To generate I5 corpus
 
 ```bash
-make -j $(nproc) target/dnb.i5.xml
+make -j $(nproc) target/dnb18.i5.xml YY=18
 ```
 
 ### To generate the KorAP-XML ZIP
@@ -13,12 +13,12 @@
 Prerequisite: [KorAP-XML-CoNLL-U](https://github.com/KorAP/KorAP-XML-CoNLL-U)
 
 ```bash
-make -j $(nproc) target/dnb.zip
+make -j $(nproc) target/dnb23.zip YY=23
 ```
 
 ### To generate Annotations
 
-Install prerequisite korap/conllu2treetagger and korap/conllu2spacy docker imeges if not present:
+Install prerequisite korap/conllu2treetagger and korap/conllu2spacy docker images if not present:
 
 ```bash
 docker image inspect korap/conllu2treetagger:latest || curl -Ls 'https://gitlab.ids-mannheim.de/KorAP/CoNLL-U-Treetagger/-/jobs/artifacts/master/raw/conllu2treetagger.xz?job=build-docker-image' | docker load
@@ -29,19 +29,26 @@
 Make annotations:
 
 ```bash
-make -j $(nproc) target/dnb.marmot-malt.zip target/dnb.spacy.zip target/dnb.tree_tagger.zip
+make -j $(nproc) target/dnb20.marmot-malt.zip target/dnb20.spacy.zip target/dnb20.tree_tagger.zip YY=20
 ```
 
 ### To build KorAP index (also directly)
 
-Build KorAP all, up to the deployable index:
+Build KorAP all, up to the ~~deployable~~ index:
 
 ```bash
-make -j $(nproc) all
+make -j $(nproc) all YY=23
 ```
 
 ## News
 
+* 2024-04-10
+  * multiple authors (and non-authors) are now correctly handled
+  * some more .(x)html files are now dropped (toc, cover, etc.)
+  * **PRELIMINARY** support for splitting everything into annual volumes
+    * use `make YY=22` to select 2022
+    * does not yet work for the index!
+
 * 2024-03-24
   * slow udpipe2 dropped
   * added marmot POS and morpho-syntactic annotations
diff --git a/xslt/epub2i5.xsl b/xslt/epub2i5.xsl
index e737f5b..fad5d88 100644
--- a/xslt/epub2i5.xsl
+++ b/xslt/epub2i5.xsl
@@ -162,7 +162,7 @@
     <!-- END variables derived from sru request to dnb archive -->
 
 
-    <xsl:variable name="corpus_sigle" select="'DNB'"/>
+    <xsl:variable name="corpus_sigle" select="concat('DNB', substring($erscheinungsjahr, 3, 2))"/>
 
     <!-- for BOTD: -->
     <!-- Dokumentsigle muss zusammen mit Korpussigle (z.B DIV fuer loz-div und loz-div-pub) eindeutig sein -->
diff --git a/xslt/idsCorpus-template.xml b/xslt/idsCorpus-template.xml
index 80608a2..4d042cb 100644
--- a/xslt/idsCorpus-template.xml
+++ b/xslt/idsCorpus-template.xml
@@ -4,7 +4,7 @@
   <idsHeader TEIform="teiHeader" pattern="allesaußerZtg/Zschr" status="new" type="corpus" version="1.1">
     <fileDesc>
       <titleStmt>
-        <korpusSigle>DNB</korpusSigle>
+        <korpusSigle>DNB{YY}</korpusSigle>
         <c.title>Deutsche Nationalbibliothek: Belletristik</c.title>
       </titleStmt>
       <publicationStmt>