Introduction to Symmetry

          @misc{ scivideos_PIRSA:19090121,
            doi = {10.48660/19090121},
            url = {https://pirsa.org/19090121},
            author = {Lang, Dustin},
            keywords = {Other Physics},
            language = {en},
            title = {Introduction to Symmetry},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2019},
            month = {sep},
            note = {PIRSA:19090121 see, \url{https://scivideos.org/index.php/pirsa/19090121}}
          }