TY  - RPRT
TI  - N-string amplitude as a trace of half-string matrices.
AU  - Hong-Mo Chan
AU  - J Bordes
AU  - Tsou Sheung Tsun
AU  - L Nellen
PY  - 1989
DO  - 10.1103/physrevd.40.2620
UR  - https://pubmed.ncbi.nlm.nih.gov/10012104/
ID  - 10012104
ER  -