diff -r e2174bf626b8 -r 173548e4d5d0 CONTRIBUTORS
--- a/CONTRIBUTORS	Thu Apr 04 11:40:45 2024 +0200
+++ b/CONTRIBUTORS	Thu Apr 04 15:29:41 2024 +0200
@@ -6,6 +6,11 @@
 Contributions to Isabelle2024
 -----------------------------
 
+* Αpril 2024: Manuel Eberl, Katharina Kreuzer
+  Some material on finite fields and the characteristic of a ring in HOL,
+  HOL-Computational_Algebra, and HOL-Number_Theory.
+  Also a type constructor for the algebraic closure of a field.
+
 * March 2024: Manuel Eberl
   Weierstraß Factorization Theorem in HOL-Complex_Analysis.