31 Agustin Sabio Vera, Eduardo Serna Campillo, Miguel A. Vazquez-Mozo 2011 Graviton emission in Einstein-Hilbert gravity Journal of High Energy Physics JHEP 03 (2012) 005 Journal of High Energy Physics JHEP 03 (2012) 005 03 005 http://arXiv.org/abs/arXiv:1112.4494