World sheets for world sheets revisited

          @misc{ scivideos_PIRSA:09070008,
            doi = {10.48660/09070008},
            url = {https://pirsa.org/09070008},
            author = {Rabinovici, Eliezer},
            keywords = {Quantum Fields and Strings, Particle Physics, Cosmology},
            language = {en},
            title = {World sheets for world sheets revisited},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2009},
            month = {jul},
            note = {PIRSA:09070008 see, \url{https://scivideos.org/index.php/pirsa/09070008}}
          }