Gauge theory of gravity and matter

          @misc{ scivideos_PIRSA:14050120,
            doi = {10.48660/14050120},
            url = {https://pirsa.org/14050120},
            author = {Kerr, Steven},
            keywords = {},
            language = {en},
            title = {Gauge theory of gravity and matter},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2014},
            month = {may},
            note = {PIRSA:14050120 see, \url{https://scivideos.org/pirsa/14050120}}
          }