diff --git a/content/research/projects/pdp4e.md b/content/research/projects/pdp4e.md
index c7db5b8ca4b0170371371ed33dac8347b0ed6bf3..5f2b9855fe7a35e11225fcbe980adead5326f310 100644
--- a/content/research/projects/pdp4e.md
+++ b/content/research/projects/pdp4e.md
@@ -48,3 +48,4 @@ This project was running from May 2018 to April 2021."
 * UNIVERSITAET DUISBURG-ESSEN - Germany
 
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