共 56 条
[51]
TSEYTLIN A, 1991, JHUTIPAC91004 J HOPK
[53]
VENEZIANO G, UNPUB
[54]
VENEZIANO G, 1991, CERNTH607791 PREPR
[55]
VENEZIANO G, 1985, PHYS LETT B, V167, P388
[56]
WITTEN E, IASSNSHEP9112 PRINC