Explorations in Quantum Gravity - Lecture 8

          @misc{ scivideos_PIRSA:12040029,
            doi = {},
            url = {https://pirsa.org/12040029},
            author = {Rovelli, Carlo},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Explorations in Quantum Gravity - Lecture 8},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2012},
            month = {apr},
            note = {PIRSA:12040029 see, \url{https://scivideos.org/index.php/pirsa/12040029}}
          }