Computing the BRST Operator Used in Quantization of Gauge Theories
  It is shown that for a large class of non-holonomic quantum mechanical systems one can make the computation of BRST charge fully algorithmic. Two computer algebra programs written in the language of {\tt REDUCE} are described. They are able to realize the complex calculations needed to determine the charge for general nonlinear algebras. Some interesting specific solutions are discussed. 
A. Burnel, H. Caprasse and A. Dresse