PSI 2017/2018 - Quantum Field Theory I - Lecture 2

          @misc{ scivideos_PIRSA:17100021,
            doi = {},
            url = {https://pirsa.org/17100021},
            author = {Wohns, Dan},
            keywords = {},
            language = {en},
            title = {PSI 2017/2018 - Quantum Field Theory I - Lecture 2},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2017},
            month = {oct},
            note = {PIRSA:17100021 see, \url{https://scivideos.org/index.php/pirsa/17100021}}
          }