Discussion 1

          @misc{ pirsa_PIRSA:15040180,
            doi = {10.48660/15040180},
            url = {https://pirsa.org/15040180},
            author = {},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Discussion 1},
            publisher = {Perimeter Institute},
            year = {2015},
            month = {apr},
            note = {PIRSA:15040180 see, \url{https://pirsa.org}}
          }