1. String theory in two dimensions;Klebanov,1991
2. P. Ginsparg and G. Moore, Lectures on 2D gravity and 2D string theory, preprint YCTP-P23, LA-UR-92-3479
3. Fields and symmetries of 2d strings, Brown HET-894;Jevicki,1993
4. CLASSICAL SOLUTIONS OF 2-DIMENSIONAL STRING THEORY