Discussion 2

          @misc{ scivideos_PIRSA:18030084,
            doi = {10.48660/18030084},
            url = {https://pirsa.org/18030084},
            author = {},
            keywords = {Mathematical physics},
            language = {en},
            title = {Discussion 2},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2018},
            month = {mar},
            note = {PIRSA:18030084 see, \url{https://scivideos.org/index.php/pirsa/18030084}}
          }