Advanced General Relativity - Lecture 20

          @misc{ scivideos_PIRSA:12030074,
            doi = {},
            url = {https://pirsa.org/12030074},
            author = {Poisson, Eric},
            keywords = {},
            language = {en},
            title = {Advanced General Relativity - Lecture 20},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2012},
            month = {mar},
            note = {PIRSA:12030074 see, \url{https://scivideos.org/pirsa/12030074}}
          }