TY  - BOOK
TI  - Physics and mathematics of strings
SN  - 971509806
U1  - 539.7/2 
PY  - 1990///
CY  - Singapore
PB  - World scientific
KW  - String models--Congresses
KW  - Superstring theories--Congresses
KW  - Particles (Nuclear physics)--Congresses
ER  -