PSI 2018/2019 - Gravitational Physics - Lecture 6

          @misc{ scivideos_PIRSA:19020013,
            doi = {},
            url = {https://pirsa.org/19020013},
            author = {Gregory, Ruth},
            keywords = {},
            language = {en},
            title = {PSI 2018/2019 - Gravitational Physics - Lecture 6},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2019},
            month = {feb},
            note = {PIRSA:19020013 see, \url{https://scivideos.org/index.php/pirsa/19020013}}
          }