Topological String Theory I

          @misc{ scivideos_PIRSA:05010006,
            doi = {10.48660/05010006},
            url = {https://pirsa.org/05010006},
            author = {},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Topological String Theory I},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2005},
            month = {jan},
            note = {PIRSA:05010006 see, \url{https://scivideos.org/index.php/pirsa/05010006}}
          }