13/14 PSI - Quantum Field Theory I - Lecture 3

          @misc{ scivideos_PIRSA:13100022,
            doi = {},
            url = {https://pirsa.org/13100022},
            author = {Cachazo, Freddy},
            keywords = {},
            language = {en},
            title = {13/14 PSI - Quantum Field Theory I - Lecture 3},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2013},
            month = {oct},
            note = {PIRSA:13100022 see, \url{https://scivideos.org/index.php/pirsa/13100022}}
          }