Field-Dependent BRS Tranformations and Correct Prescription for   1/(n.k)^p-Type Singularities in Axial Gauges
  The axial-gauge boson propagator contains 1/(n.k)^p-type singularities. These singularities have generally been treated by inventing prescriptions for them. We propose an alternative procedere for treating these singularities in the path-integral formalism using the known way of treating the 1/k^{2n}-type singularities in Lorentz-type gauges. For this purpose we use a finite field-dependent BRS transformation that inerpolates between the Lorentz and axial-type gauges. We arrive at the \epsilon-dependent tree propagator in axial-type gauges. 
A. Misra (Institute of Physics, Bhubaneswar, Orissa, India)