Dual billiards, Fagnano orbits and regular polygons
The American Mathematical Monthly, 2009, 116, pp.251-260
Background-free propagation in loop quantum gravity
Advanced Science Letters, 2009, 2, pp.280-290. (10.1166/asl.2009.1036)
Spectral action on $SU_q(2)$
Communications in Mathematical Physics, 2009, 289, pp.107-155
Semiclassical regime of Regge calculus and spin foams
Nuclear Physics B, 2009, 808 (3), pp.546-568
The spatial clustering of X-ray selected AGN in the XMM-COSMOS field
Astronomy & Astrophysics - A&A, 2009, 494, pp.33-48. (10.1051/0004-6361:200810821)
Approximation and billiards
Dynamical systems and Diophantine approximation, 2009, Paris, France. pp.173-185
The length operator in Loop Quantum Gravity
Nuclear Physics B, 2009, 807, pp.591-624
The geometry of Schrödinger symmetry in non-relativistic CFT
Annals of Physics, 2009, 324, pp.1158-1167
Cremmer-Gervais Quantum Lie Algebra
Fortschritte der Physik / Progress of Physics, 2009, 57 (5-7), pp.654-658
Coupling between reconnection and Kelvin-Helmholtz instabilities in collisionless
Nonlinear Processes in Geophysics, 2009, 16 (2), pp.241-249. (10.5194/npg-16-241-2009)