On the amplitudes for non-critical n=2 supuerstrings
  We compute correlation functions in $N=2$ non critical superstrings on the sphere. Our calculations are restrained to the ($s=0$) bulk amplitudes. We show that the four point function factorizes as a consequence of the non-critical kinematics, but differently from the $N=0,1$ cases no extra discrete state appears in the $\hat c\to 1^-$ limit. 
E. Abdalla, M.C.B. Abdalla, D. Dalmazi