Twistors and Pertubative Gravity including work (2005) with Z Bern, S Bidder, E Bjerrum-Bohr, H Ita, W Perkins, K Risager From Twistors to Amplitudes 2005.
Perturbative Ultraviolet Calculations in Supergravity Tristan Dennen (NBIA) Based on work with: Bjerrum-Bohr, Monteiro, O’Connell Bern, Davies, Huang,
Twistors and Pertubative Gravity