PSI 2014/2015 - String Theory - Lecture 15

          @misc{ pirsa_PIRSA:15020025,
            doi = {},
            url = {https://pirsa.org/15020025},
            author = {Gaiotto, Davide},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {PSI 2014/2015 - String Theory - Lecture 15},
            publisher = {Perimeter Institute},
            year = {2015},
            month = {feb},
            note = {PIRSA:15020025 see, \url{https://pirsa.org}}
          }