Diablada mask worn during the Diablada (Dance of the Devils) annual celebrations in Bolivia, by Rene Flores Ordonez, 2006 Diablada mask worn during the Diablada (Dance of the Devils) annual celebrations in Bolivia 2006
PhD thesis by Hawking's student Friedel Epple, titled: String scattering amplitudes and effective action for toroidal orientifolds 2006
PhD thesis by Hawking's student Paul Davis, titled: Hidden symmetries of higher dimensional black holes 2006