%0 Journal Article %T Two-loop gluon diagrams from string theory %A Lorenzo Magnea %A Rodolfo Russo %J Physics %D 1997 %I arXiv %R 10.1063/1.53731 %X We briefly review the string technology needed to calculate Yang-Mills amplitudes at two loops, and we apply it to the evaluation of two-loop vacuum diagrams. %U http://arxiv.org/abs/hep-ph/9706396v1