BSM Theory 1

          @misc{ pirsa_PIRSA:18070011,
            doi = {10.48660/18070011},
            url = {https://pirsa.org/18070011},
            author = {McCollough, Matthew},
            keywords = {},
            language = {en},
            title = {BSM Theory 1},
            publisher = {Perimeter Institute},
            year = {2018},
            month = {jul},
            note = {PIRSA:18070011 see, \url{https://pirsa.org}}
          }