Free field representations for the affine superalgebra sl(2|1)
  Free field representations of the affine superalgebra $A(1,0)^{(1)}$ at level $k$ are needed in the description of the noncritical $N=2$ string. The superalgebra admits two inequivalent choices of simple roots. We give the Wakimoto representations corresponding to each of these and derive the relation between the two at the quantum level. 
P.Bowcock, R-L.K.Koktava and A.Taormina (Durham University)