diff --git a/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/ArticleInJournalPropertyForm.java b/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/ArticleInJournalPropertyForm.java
index c03d7bb56..9d880e56b 100644
--- a/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/ArticleInJournalPropertyForm.java
+++ b/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/ArticleInJournalPropertyForm.java
@@ -31,6 +31,8 @@ import com.arsdigita.bebop.form.Option;
 import com.arsdigita.bebop.form.TextField;
 import com.arsdigita.bebop.parameters.DateParameter;
 import com.arsdigita.bebop.parameters.IntegerParameter;
+import com.arsdigita.bebop.parameters.NotEmptyValidationListener;
+import com.arsdigita.bebop.parameters.NotNullValidationListener;
 import com.arsdigita.bebop.parameters.ParameterModel;
 import com.arsdigita.bebop.parameters.StringParameter;
 import com.arsdigita.cms.ItemSelectionModel;
@@ -74,6 +76,8 @@ public class ArticleInJournalPropertyForm
         ParameterModel volumeParam =
                        new IntegerParameter(ArticleInJournal.VOLUME);
         TextField volume = new TextField(volumeParam);
+        volume.addValidationListener(new NotNullValidationListener());
+        volume.addValidationListener(new NotEmptyValidationListener());
         add(volume);
 
         add(new Label((String) PublicationGlobalizationUtil.globalize(
diff --git a/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/ProceedingsPropertyForm.java b/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/ProceedingsPropertyForm.java
index 80e1df2c5..c3ba1e53a 100644
--- a/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/ProceedingsPropertyForm.java
+++ b/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/ProceedingsPropertyForm.java
@@ -29,13 +29,12 @@ import com.arsdigita.bebop.event.FormSubmissionListener;
 import com.arsdigita.bebop.form.Date;
 import com.arsdigita.bebop.form.TextField;
 import com.arsdigita.bebop.parameters.DateParameter;
+import com.arsdigita.bebop.parameters.NotEmptyValidationListener;
+import com.arsdigita.bebop.parameters.NotNullValidationListener;
 import com.arsdigita.bebop.parameters.ParameterModel;
 import com.arsdigita.bebop.parameters.StringParameter;
-import com.arsdigita.cms.ContentType;
 import com.arsdigita.cms.ItemSelectionModel;
-import com.arsdigita.cms.contenttypes.GenericOrganizationalUnit;
 import com.arsdigita.cms.contenttypes.Proceedings;
-import com.arsdigita.cms.ui.ItemSearchWidget;
 import java.util.Calendar;
 import java.util.GregorianCalendar;
 
@@ -49,7 +48,7 @@ public class ProceedingsPropertyForm
                    FormInitListener,
                    FormSubmissionListener {
 
-    private ProceedingsPropertiesStep m_step;       
+    private ProceedingsPropertiesStep m_step;
     public static final String ID = "proceedingsEdit";
 
     public ProceedingsPropertyForm(ItemSelectionModel itemModel) {
@@ -66,12 +65,14 @@ public class ProceedingsPropertyForm
     @Override
     protected void addWidgets() {
         super.addWidgets();
-       
+
         add(new Label(PublicationGlobalizationUtil.globalize(
                 "publications.ui.proceedings.name_of_conference")));
         ParameterModel nameOfConfParam = new StringParameter(
                 Proceedings.NAME_OF_CONFERENCE);
         TextField nameOfConf = new TextField(nameOfConfParam);
+        nameOfConf.addValidationListener(new NotNullValidationListener());
+        nameOfConf.addValidationListener(new NotEmptyValidationListener());
         add(nameOfConf);
 
         add(new Label(PublicationGlobalizationUtil.globalize(
@@ -79,6 +80,8 @@ public class ProceedingsPropertyForm
         ParameterModel placeOfConfParam = new StringParameter(
                 Proceedings.PLACE_OF_CONFERENCE);
         TextField placeOfConf = new TextField(placeOfConfParam);
+        placeOfConf.addValidationListener(new NotNullValidationListener());
+        placeOfConf.addValidationListener(new NotEmptyValidationListener());
         add(placeOfConf);
 
         Calendar today = new GregorianCalendar();
@@ -88,6 +91,8 @@ public class ProceedingsPropertyForm
                 Proceedings.DATE_FROM_OF_CONFERENCE);
         Date dateFrom = new Date(dateFromParam);
         dateFrom.setYearRange(1900, today.get(Calendar.YEAR) + 3);
+        dateFrom.addValidationListener(new NotNullValidationListener());
+        dateFrom.addValidationListener(new NotEmptyValidationListener());
         add(dateFrom);
 
         add(new Label(PublicationGlobalizationUtil.globalize(
@@ -96,6 +101,8 @@ public class ProceedingsPropertyForm
                 Proceedings.DATE_TO_OF_CONFERENCE);
         Date dateTo = new Date(dateToParam);
         dateTo.setYearRange(1900, today.get(Calendar.YEAR) + 3);
+        dateTo.addValidationListener(new NotNullValidationListener());
+        dateTo.addValidationListener(new NotEmptyValidationListener());
         add(dateTo);
     }
 
@@ -106,7 +113,7 @@ public class ProceedingsPropertyForm
 
         FormData data = fse.getFormData();
         Proceedings proceedings = (Proceedings) super.initBasicWidgets(fse);
-     
+
         data.put(Proceedings.NAME_OF_CONFERENCE,
                  proceedings.getNameOfConference());
         data.put(Proceedings.PLACE_OF_CONFERENCE,
@@ -126,7 +133,7 @@ public class ProceedingsPropertyForm
 
 
         if ((proceedings != null) && getSaveCancelSection().getSaveButton().
-                isSelected(fse.getPageState())) {        
+                isSelected(fse.getPageState())) {
             proceedings.setNameOfConference((String) data.get(
                     Proceedings.NAME_OF_CONFERENCE));
             proceedings.setPlaceOfConference((String) data.get(
diff --git a/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/PublicationPropertyForm.java b/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/PublicationPropertyForm.java
index 1a773782f..6c643a774 100644
--- a/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/PublicationPropertyForm.java
+++ b/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/PublicationPropertyForm.java
@@ -29,6 +29,8 @@ import com.arsdigita.bebop.event.FormSubmissionListener;
 import com.arsdigita.bebop.form.TextArea;
 import com.arsdigita.bebop.form.TextField;
 import com.arsdigita.bebop.parameters.IntegerParameter;
+import com.arsdigita.bebop.parameters.NotEmptyValidationListener;
+import com.arsdigita.bebop.parameters.NotNullValidationListener;
 import com.arsdigita.bebop.parameters.ParameterModel;
 import com.arsdigita.bebop.parameters.StringParameter;
 import com.arsdigita.cms.ItemSelectionModel;
@@ -78,6 +80,8 @@ public class PublicationPropertyForm
                 Publication.YEAR_OF_PUBLICATION);
         TextField yearOfPublication = new TextField(yearOfPublicationParam);
         yearOfPublication.setMaxLength(4);
+        yearOfPublication.addValidationListener(new NotNullValidationListener());
+        yearOfPublication.addValidationListener(new NotEmptyValidationListener());
         add(yearOfPublication);
 
         add(new Label((String) PublicationGlobalizationUtil.globalize(
diff --git a/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/PublicationResources_de.properties b/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/PublicationResources_de.properties
index 7679c36e4..8352814b0 100644
--- a/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/PublicationResources_de.properties
+++ b/ccm-sci-publications/src/com/arsdigita/cms/contenttypes/ui/PublicationResources_de.properties
@@ -109,13 +109,13 @@ publications.ui.internetarticle.publicationdate=Ver\u00f6ffentlichungsdatum
 #================
 publications.ui.articleinjournal.edit_basic_sheet=Basiseigenschaften bearbeiten
 publications.ui.articleinjournal.issn=ISSN
-publications.ui.articleinjournal.issue=Jahrgang
+publications.ui.articleinjournal.issue=Ausgabe
 publications.ui.articleinjournal.journal=Zeitschrift
 publications.ui.articleinjournal.url=URL
 publications.ui.articleinjournal.pages_from=Erste Seite
 publications.ui.articleinjournal.pages_to=Letzte Seite
 publications.ui.articleinjournal.publicationDate=Erscheinungsdatum
-publications.ui.articleinjournal.volume=Band
+publications.ui.articleinjournal.volume=Jahrgang
 
 #UnPublished
 #===========