Current Algebra in the Path Integral framework
  In this letter we describe an approach to the current algebra based in the Path Integral formalism. We use this method for abelian and non-abelian quantum field theories in 1+1 and 2+1 dimensions and the correct expressions are obtained. Our results show the independence of the regularization of the current algebras. 
V. Cardenas, S. Lepe and J. Saavedra (USACH)