O(1/N^3) Conformal Bootstrap Solution of the SU(2) x SU(2)   Nambu--Jona-Lasinio Model
  Using the full conformal bootstrap method an analytic expression is given in d-dimensions for the anomalous dimension of the fermion at O(1/N^3) in a large N expansion of the Nambu--Jona-Lasinio model with SU(2) x SU(2) continuous chiral symmetry. 
J.A. Gracey