I have been a referee for the following journals listed below (12 papers):

• Electronic Journal of Combinatorics (4 papers)
• Discrete Mathematics (3 papers)
• Séminaire Lotharingien de Combinatoire : Proceedings of the 37th Conference on Formal Power Series and Algebraic Combinatorics (FPSAC) (1 paper)
• The Ramanujan Journal (2 papers)
• Journal of Combinatorial Theory, Series A (1 paper)
• Mathematical Reviews MathSciNet (1 paper)