TY  - RPRT
TI  - Tree and nontree multiparticle amplitudes.
AU  - H Goldberg
AU  - MT Vaughn
PY  - 1991
DO  - 10.1103/physrevlett.66.1267
UR  - https://pubmed.ncbi.nlm.nih.gov/10043162/
ID  - 10043162
ER  -