$ \mathcal{N} = 2 $ conformal superspace in four dimensions

New supersymmetric higher-derivative couplings: full N = 2 superspace does not count!

(2011) Bernard de Wit et al.   JOURNAL OF HIGH ENERGY PHYSICS

N=1 conformal superspace in four dimensions

(2009) Daniel Butter   ANNALS OF PHYSICS

Properties of Hyperkähler Manifolds and Their Twistor Spaces

(2009) Ulf Lindström et al.   COMMUNICATIONS IN MATHEMATICAL PHYSICS

Background field formalism for chiral matter and gauge fields conformally coupled to supergravity

(2009) Daniel Butter   NUCLEAR PHYSICS B

On conformal supergravity and projective superspace

(2009) S.M Kuzenko et al.   JOURNAL OF HIGH ENERGY PHYSICS

Different representations for the action principle in 4D 𝒩 = 2 supergravity

(2009) Sergei M Kuzenko et al.   JOURNAL OF HIGH ENERGY PHYSICS

4D 𝒩 = 2 supergravity and projective superspace

(2008) S.M Kuzenko et al.   JOURNAL OF HIGH ENERGY PHYSICS