PSI 2017/2018 - Scattering Amplitudes in QFT & String Theory - Lecture 6

          @misc{ pirsa_PIRSA:18040040,
            doi = {},
            url = {https://pirsa.org/18040040},
            author = {Cachazo, Freddy},
            keywords = {},
            language = {en},
            title = {PSI 2017/2018 - Scattering Amplitudes in QFT \& String Theory - Lecture 6},
            publisher = {Perimeter Institute},
            year = {2018},
            month = {apr},
            note = {PIRSA:18040040 see, \url{https://pirsa.org}}
          }