adjust license info
diff --git a/org.eclipse.osbp.xtext.datamartdsl/src/org/eclipse/osbp/xtext/datamartdsl/util/DatamartAttributeUtil.xtend b/org.eclipse.osbp.xtext.datamartdsl/src/org/eclipse/osbp/xtext/datamartdsl/util/DatamartAttributeUtil.xtend
index 049aa59..b2821ae 100644
--- a/org.eclipse.osbp.xtext.datamartdsl/src/org/eclipse/osbp/xtext/datamartdsl/util/DatamartAttributeUtil.xtend
+++ b/org.eclipse.osbp.xtext.datamartdsl/src/org/eclipse/osbp/xtext/datamartdsl/util/DatamartAttributeUtil.xtend
@@ -1,4 +1,19 @@
-package org.eclipse.osbp.xtext.datamartdsl.util
+/**
+ *
+ * Copyright (c) 2011, 2016 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ * Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation
+ *
+ */
+ package org.eclipse.osbp.xtext.datamartdsl.util
import org.eclipse.osbp.xtext.datamartdsl.DatamartAttribute
import org.eclipse.osbp.xtext.datamartdsl.DatamartAttributeBase
diff --git a/org.eclipse.osbp.xtext.datamartdsl/src/org/eclipse/osbp/xtext/datamartdsl/util/DatamartHierarchyUtil.xtend b/org.eclipse.osbp.xtext.datamartdsl/src/org/eclipse/osbp/xtext/datamartdsl/util/DatamartHierarchyUtil.xtend
index 61dc238..be5468b 100644
--- a/org.eclipse.osbp.xtext.datamartdsl/src/org/eclipse/osbp/xtext/datamartdsl/util/DatamartHierarchyUtil.xtend
+++ b/org.eclipse.osbp.xtext.datamartdsl/src/org/eclipse/osbp/xtext/datamartdsl/util/DatamartHierarchyUtil.xtend
@@ -1,4 +1,19 @@
-package org.eclipse.osbp.xtext.datamartdsl.util
+/**
+ *
+ * Copyright (c) 2011, 2018 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ * Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation
+ *
+ */
+ package org.eclipse.osbp.xtext.datamartdsl.util
import org.eclipse.osbp.xtext.datamartdsl.DatamartHierarchy
import org.eclipse.osbp.xtext.datamartdsl.DatamartHierarchyLevelMultiple
