TY  - RPRT
TI  - Operator approach to bosonic string: Multiloop calculation and b-ghost insertion.
AU  - U Carow-Watamura
AU  - ZF Ezawa
AU  - A Tezuka
AU  - S Watamura
PY  - 1989
DO  - 10.1103/physrevd.40.422
UR  - https://pubmed.ncbi.nlm.nih.gov/10011831/
ID  - 10011831
ER  -