Talks
Invited talks at conferences and workshops
  - Coalgebraic Semantics of Reflexive Economics, Dagstuhl, 2015.
  
- Journées Courcelle, Bordeaux, 2012.
  
- Finite Model Theory, Les Houches, 2012.
  
- Journées Complexité et Modèles Finis, Paris, 2011.
  
- Logic, Combinatorics and Computation, Brno, 2010.
  
- Higher-Order Recursion Schemes & Pushdown Automata, Paris, 2010.
  
- ASL Winter Meeting, Special Session on
         Model Theoretic Methods in Finite Combinatorics, Washington, 2009.
  
- Logic and Algorithms, Edinburgh, 2008.
  
- Algorithmic-Logical Theory of Infinite Structures, Dagstuhl, 2007.
  
- Logic and Combinatorics, Szeged, 2006.
  
- Finitely Represented Infinite Graphs, Rennes, 2005.
  
- Workshop on Automata, Structures and Logic, Auckland, 2004.
  
- Automata, Logic, and Infinite Games, Dagstuhl, 2001.
Invited lectures and stays at universities
  - Simons Institute, Berkley, 2016
  
- University of Paris 7, 2014.
  
- University of Warsaw, 2014.
  
- University of Paris 7, 2013.
  
- University of Paris 7, 2011.
  
- Université Bordeaux 1, 2011.
  
- Université Paris 7, 2011.
  
- Kurt Gödel Research Center, Wien, 2011.
  
- Université Bordeaux 1, 2009.
  
- RWTH Aachen, 2008.
  
- University of Paris 7, 2008.
  
- University of Dresden, 2003.