Composite operators in lattice QCD: nonperturbative renormalization
  We investigate the nonperturbative renormalization of composite operators in lattice QCD restricting ourselves to operators that are bilinear in the quark fields. These include operators which are relevant to the calculation of moments of hadronic structure functions. The computations are based on Monte Carlo simulations using quenched Wilson fermions. 
M. Gockeler, R. Horsley, H. Oelrich, H. Perlt, D. Petters, P.E.L.   Rakow, A. Schafer, G. Schierholz, A. Schiller