- May and June 2012Prof. Nikolay ProkofievUMass Amherst, USA
- May 2012Prof. Felix WernerEcole Normale Superieure, Paris, France
- Apr. 2012Dr. Timothy M. GaroniMonash University, Australia
- Apr. 2011Prof. Henk W. J. BlöteLeiden University, The Netherlands
- Sep. 2010Dr. Timothy M. GaroniMonash University, Australia
- Feb. 2010Prof. Henk W. J. BlöteLeiden University, The Netherlands
- Nov. 2009Dr. Timothy M. GaroniMonash University, Australia
- Oct. 2009Prof. Boris SvistunovUMass Amherst, USA
- May. 2009Prof. Alan D. SokalNew York University, USA
- Sep. 2008Dr. Timothy M. GaroniMonash University, Australia