TBA

          @misc{ scivideos_PIRSA:16040064,
            doi = {10.48660/16040064},
            url = {https://pirsa.org/16040064},
            author = {Barrett, John},
            keywords = {Quantum Gravity},
            language = {en},
            title = {TBA},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2016},
            month = {apr},
            note = {PIRSA:16040064 see, \url{https://scivideos.org/pirsa/16040064}}
          }