海量图书期刊资源，随时随地畅享阅读乐趣
The tree formula for MHV graviton amplitudesDung Nguyen; Marcus Spradlin; Anastasia Volovich; Congkao Wen · 2010
Three-loop leading singularities and Bern-Dixon-Smirnov ansatz for five particlesSpradlin, Marcus; Volovich, Anastasia; Wen, Congkao · Physical Review D · 2008