共 14 条
- [1] CALLAN CG, 1985, PRINCETON PREPRINT
- [3] CASHER A, CERNTH422085 PREPR
- [4] DIXON L, 1985, STRINGS ORBIFOLDS
- [5] GODDARD P, DAMTP8322 PREPR
- [7] SUPERSYMMETRIC DUAL STRING THEORY .2. VERTICES AND TREES [J]. NUCLEAR PHYSICS B, 1982, 198 (02) : 252 - 268
- [10] GROSS D, 1985, HETEROTIC STRING THE, V2