TBA

          @misc{ pirsa_PIRSA:15100061,
            doi = {10.48660/15100061},
            url = {https://pirsa.org/15100061},
            author = {Livine, Etera},
            keywords = {Quantum Gravity},
            language = {en},
            title = {TBA},
            publisher = {Perimeter Institute},
            year = {2015},
            month = {oct},
            note = {PIRSA:15100061 see, \url{https://pirsa.org}}
          }