diff --git a/doc/publications.bib b/doc/publications.bib
index f8f7b6ca..4be6676a 100644
--- a/doc/publications.bib
+++ b/doc/publications.bib
@@ -1,7 +1,7 @@
 @Comment{
-SPDX-FileCopyrightText: 2023 2023, The PyPSA-Eur authors
+SPDX-FileCopyrightText: 2023 The PyPSA-Eur Authors
 
-SPDX-License-Identifier: CC-0
+SPDX-License-Identifier: CC0-1.0
 }
 
 @article{PyPSAEur,