Functional Schroedinger and BRST Quantization of (1+1)--Dimensional   Gravity
  We discuss the quantization of pure string--inspired dilaton--gravity in $(1+1)$--dimensions, and of the same theory coupled to scalar matter. We perform the quantization using the functional Schroedinger and BRST formalisms. We find, both for pure gravity and the matter--coupled theory, that the two quantization procedures give inequivalent ``physical'' results. 
E. Benedict, R. Jackiw, H.-J. Lee