diff --git a/review_answers/review_2_answers.md b/review_answers/review_2_answers.md
index 54423a1..d801ef7 100644
--- a/review_answers/review_2_answers.md
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@@ -35,6 +35,7 @@
 > You define "research software" broadly but then say this definition is "the outcome of a recent discussion." Cite that discussion properly so readers can check it.
 
 **Answer:**
+We did refer to Gruenpeter M, et al.: Defining research software: A controversial discussion. FORCE11, Research Data Alliance, Research Software Alliance; Zenodo, Summary Report of FAIR4RS Subgroup 3 activity and discussion Version 1. Sep. 2021 to direct readers to this discussion. 
 
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