Cercle astronomique de Bruxelles, October 20, 2005
Qu'est-ce que la relativité générale?
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Mytilene, September 18, 2007
Central extensions in flat spacetimes-Duality and thermodynamics of black hole dyons
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Napoli, June 24, 2008
Algebraic structure of gauge systems: Theory and applications
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Moscow, May 19, 2009
New aspects of duality in electromagnetism, linearized gravity and higher spin gauge fields
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Cambridge, February 17, 2010
Aspects of the BMS/CFT correspondence
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Luxembourg, October 24, 2011
Theoretical Aspects of Black Hole Physics
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