PSI 2016/2017 - Relativity - Lecture 4

          @misc{ scivideos_PIRSA:16090004,
            doi = {},
            url = {https://pirsa.org/16090004},
            author = {Turok, Neil},
            keywords = {Strong Gravity},
            language = {en},
            title = {PSI 2016/2017 - Relativity - Lecture 4},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2016},
            month = {sep},
            note = {PIRSA:16090004 see, \url{https://scivideos.org/pirsa/16090004}}
          }