Perturbative Computation of Glueball Superpotentials for SO(N) and   USp(N)
  We use the superspace method of hep-th/0211017 to prove the matrix model conjecture for N=1 USp(N) and SO(N) gauge theories in four dimensions. We derive the prescription to relate the matrix model to the field theory computations. We perform an explicit calculation of glueball superpotentials. The result is consistent with field theory expectations. 
Harald Ita, Harald Nieder, Yaron Oz