Measuring Black Hole Spin

          @misc{ scivideos_PIRSA:09020045,
            doi = {10.48660/09020045},
            url = {https://pirsa.org/09020045},
            author = {Narayan, Ramesh},
            keywords = {Cosmology},
            language = {en},
            title = {Measuring Black Hole Spin},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2009},
            month = {feb},
            note = {PIRSA:09020045 see, \url{https://scivideos.org/index.php/pirsa/09020045}}
          }