Amplitudes: Reformulation of Feynman diagrams

          @misc{ scivideos_PIRSA:15070047,
            doi = {10.48660/15070047},
            url = {https://pirsa.org/15070047},
            author = {He, Song},
            keywords = {Particle Physics},
            language = {en},
            title = {Amplitudes: Reformulation of Feynman diagrams },
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2015},
            month = {jul},
            note = {PIRSA:15070047 see, \url{https://scivideos.org/pirsa/15070047}}
          }