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2. E. D'Hoker and D. Phong, Columbia preprint CU-TP-323, 334;
3. P. Nelson, G. Moore and J. Polchinski, Harvard preprint HUTP-85/A90.
4. D. Friedman, E. Martinec and S. Shenker, Princeton-Chicago preprint (November 1985).
5. Soft dilatons and scale renormalization in dual theories