Amplitudes: Soft Theorems

          @misc{ scivideos_PIRSA:15070052,
            doi = {10.48660/15070052},
            url = {https://pirsa.org/15070052},
            author = {He, Song},
            keywords = {Particle Physics},
            language = {en},
            title = {Amplitudes: Soft Theorems},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2015},
            month = {jul},
            note = {PIRSA:15070052 see, \url{https://scivideos.org/index.php/pirsa/15070052}}
          }