TY  - RPRT
TI  - Off-shell amplitudes for open bosonic strings.
AU  - C Varughese
AU  - WI Weisberger
PY  - 1988
DO  - 10.1103/physrevd.37.981
UR  - https://pubmed.ncbi.nlm.nih.gov/9958767/
ID  - 9958767
ER  -