%0 Journal Article %A Freddy Cachazo %A Lionel Mason %A David Skinner %T Gravity in Twistor Space andĀ its Grassmannian Formulation %J Symmetry, integrability and geometry: methods and applications %D 2014 %V 10 %U http://geodesic.mathdoc.fr/item/SIGMA_2014_10_a50/ %G en %F SIGMA_2014_10_a50